Google Message Security wins SC Magazine Reader Trust award

A few months back, we learned that Google Message Security, powered by Postini, was selected as a finalist in the 2010 SC Awards for outstanding achievement in IT security. Today, we are thrilled to announce that Google Message Security has received the Reader Trust Award for Best Managed Security Service.

At Google, we think about the user experience in all that we do, so we are especially honored to receive this award from the Reader Trust Voting Panel, which consists of security and technology experts from large, medium and small enterprises from all major vertical markets.

The Postini team would like to thank SC Magazine and the many readers who voted for Google Message Security. We'd also like to congratulate our fellow nominees and award-winners and acknowledge their contributions to the field of online security.

For more information on Google Message Security and the Postini suite of security and archiving products, please visit, www.google.com/postini

Posted by Gopal Shah, Google Postini team

Bringing log search to the cloud: Introducing Message Log Search for Postini

Today, we're introducing a new feature for Google Postini Services: Message Log Search. This feature delivers the search and analysis capabilities normally available with on-premise solutions, but without the associated complexity or maintenance.

When messages pass through the Postini service, header and transaction data about these messages is stored in a log. Previously, admins only had access to this data through customer support. With the Message Log Search feature, email administrators can now easily run searches on these logs and drill down to the details about how specific messages were processed.

For example, admins can view the disposition of messages, such as whether a message or group of messages was delivered, quarantined, archived, or encrypted.

Say an admin was checking the delivery status of all inbound emails from Matthew Smith:

Message Log Search returns results which include who received the message, date/time, disposition, and more. Click the image below for full view.

Customers trying a beta version of Message Log Search have found many useful, time-saving applications for the feature. For example, Dave Lugo at Affiliated Computer Systems is "very happy" that Message Log Search helps him track errant emails and easily resolve the "they didn't get it / we didn't get it" tickets he receives from his users. Joe Stark at HeidelbergCement uses log searching to "proactively search for problem senders" and block them entirely from his network.

Other customers have found that the Message Log Search interface is "very fast and responsive," and helps them to determine the effectiveness of new content policies and gain insight into traffic patterns across their organization.

These are a few examples that illustrate the flexibility and power of Message Log Search, and starting today, you can try the feature for yourself. Message Log Search is now available through the Postini service administration console to Postini and Google Apps Premier Edition customers.

For more information on Google Postini Services, please visit www.google.com/postini.

Note: Message Log Search data is managed and stored in Google datacenters pursuant to the privacy and data confidentiality provisions spelled out in our customer agreements. The message security service stores information about messages in a log, such as how it is processed, but does not store the content of messages.

Posted by Gopal Shah, Google Postini team

Google Honored as a Finalist in the 2010 SC Awards

Google is honored to have been selected as a finalist in the 2010 SC Awards for outstanding achievement in IT security. Google Message Security, powered by Postini, was nominated for the Reader Trust award in the Best Managed Security Service category from more than 600 entries across 31 technology categories.

Widely respected in the industry for more than a decade, the annual SC Awards recognize the professionals, products, and companies providing security solutions that not only protect organizations today, but are also able to identify emerging threats as the landscape of online security evolves.

At Google, we're especially proud to be up for a Reader Trust award, since our focus is always on our users first. Voters from small, medium and large enterprises spanning all industries gave Google Message Security high marks on functionality, manageability, ease-of-use and scalability, as well as the customer service and support provided for it.

“Finalists in this year’s SC Awards including Google, represent a cross-section of the security industry’s best-in-class,” said SC Magazine Editor-in-Chief Illena Armstrong. “Our readers recognize that these companies are making today’s businesses more secure.”

Winners of this year’s SC Awards will be announced at the annual SC Magazine award dinner in San Francisco on Tuesday, March 2, 2010. To attend the SC Awards, please register here.

Google's Postini team would like to thank SC Magazine and the many readers who voted for Google Message Security. We'd also like to congratulate our fellow nominees and acknowledge their contributions to the field of online security.

Posted by Gopal Shah, Google Postini team

Q3'09 Spam & Virus Trends from Postini

Editor's note: The spam data cited in this post is drawn from the network of Google email security and archiving services, powered by Postini, which processes more than 3 billion email connections per day in the course of providing email security to more than 50,000 businesses and 15 million business users.

Back in 2007, we saw the first variants of a big virus attack later labeled the "Storm" virus. During that summer, Storm attacked with force, pushing payload spam activity to then-unprecedented levels and sustaining them for several months. The security community eventually caught up, and payload spam activity fell to nominal levels and held there. That is, until this year: Q2'09 saw a significant surge in payload spam activity, and now Q3'09 levels have made the 2007 Storm virus attack look small in comparison. Postini data centers have blocked more than 100 million viruses every day during what has so far been the height of the attack.

The majority (55%) of these viruses are messages like the one you see below, a fake notice of underreported income from the IRS (which the IRS distributed an alert on earlier this week). Another large contingent (33%) have come in the form of fake package tracking attachments, which were already on the rise in Q2. You might think a spoofed IRS notice or package tracking email is obviously spam, and wonder who would fall for it and actually click on the attachment.

However, at these volumes, it takes only a tiny fraction of the recipients being fooled for the spammers to add hundreds of computers to their botnets every day.

ISP takedowns continue, overall spam levels steady

Last quarter we saw a temporary 30% drop in overall spam levels following the 3FN ISP takedown, and the ISP takedown trend continues into Q3 with a new culprit called Real Host, a large Latvia-based ISP that was disconnected by upstream providers on August 1. This takedown didn't have the same drastic effects of McColo (last November), but it was comparable to 3FN. Ultimately, the effects of the Real Host takedown lasted only two days, with an initial 30% drop in spam followed by a quick resurgence.

Overall, spam levels remained steady this quarter, with little growth or decline since the Real Host incident. In Q3, spam as a percentage of total message volume is hovering around 90%, down from the Q2 average of around 95%. Q3'09 average spam levels were down 8% from Q2'09 and on par with levels in Q3'08. Spam levels also saw smaller ups and downs than in previous quarters.

Older spam techniques driving message size up

Last quarter we reported on the trend toward larger message sizes, measured in bytes. The trend has continued into this quarter, making 2009 a year of resurgence in old techniques such as image spam and payload viruses. When considering the spam bytes processed per user, growth has been steep in 2009, with Q3'09 rates up 123% from Q3'08.

Organizations that process spam inside their network should pay attention to this trend. The larger sizes create a bandwidth burden that can impact speed across your network. As the chart shows, Q2'09 delivered the record high to date for spam size – and subsequently for bandwidth drag for teams that manage spam in-house, potentially forcing those organizations to upgrade their capacity limits.

Best practices to optimize your enterprise spam filter

A common piece of feedback we get from our customers is that many of the messages in their spam folder or quarantine seem to come from "them" – from what appear to be valid email addresses from their own domain. These email addresses are actually spoofed (a common technique to mask the real origins of a message), and spammers employ this technique to take advantage of a mistake organizations sometimes make in configuring their spam filters: adding their own domain to their approved sender list.

While this might seem like a good idea at first glance – we want to make sure we don't block email from our colleagues, right? – in practice all it does is open your organization up to spoofed email. With that in mind, we strongly recommend that organizations not add their own domains to their approved sender lists. (Don't worry – legitimate mail from within your domain is correctly identified by filters and generally gets through just fine.)

For more information on how Google email security services, powered by Postini, can help your organization provide better spam protection and take a load off your network by halting spam in the cloud, visit www.google.com/postini.

Posted by Adam Swidler, Google Postini Services team

The movement continues: "Going Google" at school & with Postini

In the past month, many of you told us how you've "gone Google" with Google Apps in your workplace. We're excited that the #goneGoogle movement continues with the millions of students who have switched to Google Apps in schools, as well as growing adoption of our Postini email security and archiving services.

More than 5 million students in 145 countries around the world have gone Google at school with our Google Apps Education Edition. To celebrate this milestone, Google's "EDU" team has created a new site that highlights many of the schools that have gone Google, as well as tips for students and educators.

Schools as well as businesses of all sizes have also chosen to protect their on-premise email systems with our hosted email security and archiving services – more than 3 billion email messages are protected by Postini each day. Postini helps your organization keep email secure, spam-free and centrally archived, without the need for hardware or software installations and upgrades. If you're still dealing with tuning your spam appliance and searching your backup tape drives, now is a good time to go Google with Postini.

We've loved hearing your feedback and encourage you to continue the conversation with us via Twitter (hashtag #gonegoogle) as well as through our Spread the Word site. The billboards may be complete (you can check out the recap video here), but we're not finished yet. Look for more "gone Google" initiatives in the US and abroad in the next few months – and don't forget to sign up for free Gone Google goodies!

Posted by Vivian Leung, Google Apps Team

Get timely updates on new features in Google Apps by subscribing to our RSS feed or email alerts.

Q2 2009 Spam Trends

Editor's Note: The spam data cited in this post is drawn from the network of Google email security and archiving services, powered by Postini, which provide email security to more than 50,000 organizations, including businesses of all sizes, government agencies, and educational institutions. To learn more about what the Gmail team is doing to keep spam out of your inboxes, check out this post.

Our "Spam Trend" update last quarter summarized the rise in both levels and types of spam, with new players and techniques entering the market. This quarter, proliferation continues, with an unpredictable pattern of drops and spikes as 2009 moves along. Overall, spam is measurably up: Q2'09 average spam levels are 53% higher than in Q1'09 and 6% higher than in Q2'08.

After last November's McColo ISP takedown, when spam volumes dropped by 70%, spammers worked overtime to fill the void. They succeeded: Within four months, spam levels rose back to pre-McColo levels. This upward trend continued through June 4, when another large ISP spam source, 3FN, was reported to have been dismantled. Spam volume immediately dropped 30% – not as extreme as McColo, but still significant. Although this created a sudden dip in spam levels, it also created an open invitation for opportunistic spammers to once again seize a market opportunity.

Over the coming months, we anticipate watching new players once again drive spam levels back up. Since June 4, spammers have already made up a significant amount of ground, climbing 14% from the initial drop.

Here's what the trend looked like, as tracked through Postini filters, over the past six months:

"Unpredictability" summarizes the overall trend as Q2'09 winds down and spammers test both new and "retro" techniques. For example, on June 18 we tracked a new attack that unleashed 50% of a typical day's spam volume in just two hours' time. This attack used a simple "newsletter" template – somewhat "old school" by today's spam standard – with malevolent links and images inserted into the content. Google's Postini filters detected more than 11,000 variants of this spam during those two hours. Because this spam enabled spoofing of the recipient domain (meaning the "from" field was falsified), distribution lists were especially hard-hit by this attack.

Resurgence of image spam

One of the other trends we're watching closely is the sudden popularity of "image spam" – a form of spam that rose to prominence in 2007, before most anti-spam filters learned how to block it. It's simple stuff: basic email with advertising content, usually containing a related image. They can also include malicious links or content – and either way, the large file size of an image spam can place a heavy load on an email network.

An image spam email might look something like this:

Evidence of the resurgence in image spam can be seen in the graph below, which shows that the actual size of spam messages, measured in bytes, is back on the rise:

There are a couple of possible explanations for the resurgence in image spam, despite the fact that most spam filters out there have adapted to the technique. One theory is that this wave is designed to test the defenses of the different spam filters out there, so that spammers can do statistical analysis on what subject lines and content have the highest probability of success.

Another is that there may be some new players entering the spam game, following the McColo and 3FN takedowns, and these new players are opening with some well-tested techniques. Either way, we're watching this trend and will share insights as we gain them in the weeks and months ahead.

Spike in payload viruses

June was also an active month for viruses sent as email attachments, otherwise known as "payload viruses." Volumes rose to their highest level in almost two years as spammers returned to yet another tried-and-true technique to expand their botnets.

As you can see in the chart below, June's activity is almost as high as the two-month payload virus surge seen in Q3'07. Fortunately, Google's Postini zero-hour heuristics detected this uprise early and kept payload attacks in the cloud and away from users' email networks.

Everything old might be new again

In summary, Q2'09 saw continued unpredictability and the resurgence of old-style spam attacks. Are spammers finally running out of original ideas? And if so, like Hollywood, are we now starting to see spam "remakes," based on originals of a few years ago? And what are spammers looking to accomplish as they unleash these remakes? Only time will tell.

For more information on how Google email security services, powered by Postini, can help your organization provide better spam protection and take a load off your network by halting spam in the cloud, visit www.google.com/postini.

Posted by Amanda Kleha, Google message security and archiving team

Policy-enforced TLS in Google Apps

In the year and a half since we acquired Postini, we've integrated a number of their message security features into Google Apps Premier Edition, including additional spam and virus filtering, content policy management tools, and archiving. Today we're pleased to announce the addition of another feature to Google Apps that many of you have been asking for: policy-enforced Transport Layer Security (TLS, RFC 2246) to help you secure the transport of messages between domains with a simple point-and-click interface.

With policy-enforced TLS, IT administrators can set up policies for securely sending and receiving mail between specific domains. For example, you could specify that all external mail sent by your accounting team members with your bank be secured with the TLS standard, and defer if TLS is not possible. Similarly, you could mandate a secure TLS connection between your domain and your outside legal counsel, auditors, and any other partners with whom your employees may trade sensitive communications. The new functionality makes it easy for an IT admin to use the TLS standard for reliable, secure email delivery – with no hardware or software to add or maintain.

We're also making a change to the message discovery and archiving feature in Google Apps for new customers. We've learned that most of our customers want at least one year of archiving, so the 90-day message archive is no longer being offered to customers who sign up after April 22. All customers can continue to buy one year of message archiving with unlimited storage for $13 per user per year, and up to 10 years of archiving with unlimited storage for $33 per user per year. Note that those of you already using Premier Edition will continue to be able to retain mail for 90 days.

Enforce an email footer to apply to outbound emails.

On the 'Outbound Servers' tab, set your TLS policies easily in the Google Postini Admin console. Settings can apply to inbound and outbound messages.

Let us know what you think about today's news. We're committed to providing the world class security and compliance technology you need in an easy and affordable way, and we welcome your comments and feedback.

Posted by Navneet Goel and Matt O'Connor, Product Managers, Google Postini services team

In Cloud We Trust

Editor's Note: There's never dull moment in the world of online security. Threat patterns evolve in volume, sophistication, and the types of exploits and sources. News about the recent Conficker virus got us talking with Scott Petry, founder of Postini (original developers of Google's suite of security and archiving services), and Wolfgang Kadek, CTO of Qualys. Their comments follow. To learn more about trends in spam, hacking, and ways of keeping email networks safe, join Google and Qualys in an on-line conversation, "In Cloud We Trust," on April 16, where we'll discuss these topics live.

Q: Ten years ago, packaged software was the norm. Yet Postini built a hosted service - what we today call cloud computing. Why did you drive a cloud architecture for Postini?

Scott: We believed that by offering a service infrastructure we could prove a lower TCO than an on-premise alternative. With that service infrastructure aggregating data, we'd also have insight into a wider sample of data, thus providing a more effective solution.

Q: How did the idea of having a "perimeter protection service" to protect email networks in the cloud first evolve? Is the right model for the future?

Scott: Postini's innovation was to see SMTP as an integration API and DNS as a way to access traffic, thus putting us "upstream" of the customers' infrastructure, alleviating integration challenges and stopping problems before they reached the firewall. We saw this as better for a number of reasons.

Email servers have a long shelf life, and customers typically add incrementally to their system, rather than get a complete replacement. This causes a management problem for IT, creating a heterogeneous environment into which they must layer in security and compliance services.

We never saw ourselves as just an anti-spam company, so we built infrastructure that allowed a business rule to be configured as tightly as a content string for a single user. This design decision is inherently linked to the cloud. It allows us to deliver a better anti-spam solution, and also expand into content compliance areas.

Q. Wolfgang, you've been keeping a tight watch on the latest vulnerabilities impacting networks worldwide via your Laws of Vulnerabilities research. What are some of the trends you're seeing in 2009?

Wolfgang: Our research into vulnerability trends has shown that the industry overall did not improve significantly its ability to address security problems in a timely manner At the same time attackers have been getting faster and more sophisticated. Proactive security by maintaining systems updated with the latest patches is the cheapest of all security tools, nevertheless it has not grown in the way I would have hoped.

The first three months of 2009 have been a great example. We've seen Conficker infect millions of machines. The simplest way of preventing the outbreak would have been to preventively apply a patch, if available, to stop the worm. But figuring out such patches takes time. In contrast to worms of the past which often gave us months to react, Conficker activated only two weeks after the official release of the patch, clearly showing that attackers have become faster in their timing. It's getting tougher for patches to keep up.

Q: As network security budgets continue to tighten, how can "security as a service" be advantageous to users?

Wolfgang: SaaS solutions have the advantage that they have minimal setup and are immediately usable. Companies can get their feet wet with a small pilot, show success, and then grow it at their own pace to address larger needs. Organizations of any size can take advantage of the functionality and the predictable steady cost of cloud solutions, while at the same time enjoying the usability brought through constant improvements.

Scott: Agreed. As IT faces more pressure from a changing threat landscape and increased compliance mandates, the cloud model gives maximum leverage to IT – always important, but especially in this economic climate.

Register here for "In Cloud we Trust"

Thursday, April 16, 2009 1:00 p.m. EST / 10:00 a.m. PST

Posted by Sundar Raghavan, Google security and archiving team

Spam data and trends: Q1 2009

Editor's Note: The spam data cited in this post is drawn from the Google enterprise security and archiving security network (Postini), which delivers an added layer of security for standalone mail servers and Google Apps Premier Edition customers. For a discussion of the anti-spam measures included in Gmail, please see this post from the Gmail blog.

In providing email security to more than 50,000 businesses and 15 million business users, Google security and archiving services, powered by Postini, process and cull spam from more than three billion enterprise email connections every day. This gives us strong insights into the state of the spam industry, some of which we share in regular posts to this blog.

Read on for a quick overview of spam trends and events in the first quarter of 2009.

What we saw in the Postini data centers

The most significant spam-related event in the first quarter of 2009 occurred when spam volume returned to pre-McColo takedown levels. By the second half of March, seven-day average spam volume was at the same volume we saw prior to the blocking of the McColo ISP in November 2008.

Spammers have clearly rallied following the McColo takedown, and overall spam volume growth during Q1 2009 was the strongest it's been since early 2008, increasing an average of 1.2% per day. To put that number into context, the growth rate of spam volume in Q1 2008 was approximately 1% per day – which, at the time, was a record high.

Of course, like every year before it, 2008 set a new record for overall spam volume. But in 2008 spam growth flattened over the summer and early fall, and then fell off a cliff after the McColo takedown (daily growth declined to .8%, .3%, and then .01% in the last three quarters of the year). This pattern raises some interesting questions regarding what we can expect in the rest of 2009: Will spam growth once again flatten or decline after a strong first quarter? Or have spammers – as part of their recovery from the McColo takedown – rebuilt botnets to be capable of sustaining or even accelerating this early growth spurt?

It's difficult to ascertain exactly how spammers have rebuilt in the wake of McColo, but data suggests they're adopting new strategies to avoid a McColo-type takedown from occurring again. Specifically, the recent upward trajectory of spam could indicate that spammers are building botnets that are more robust but send less volume – or at least that they haven't enabled their botnets to run at full capacity because they're wary of exposing a new ISP as a target.

New types of spam

The most significant development in spam vectors this quarter was the appearance of location-based spam. In this type of attack, users click on a link in a spam message and are directed to a page that contains a fraudulent news headline describing a crisis or disaster in a major city nearby. The attack customizes the location for each user by determining the geolocation of the user's source IP and then identifying the nearest major city. The addition of location creates a heightened level of interest, and the user is tempted to click on the embedded video – which in turn downloads a virus to his or her machine.

Meanwhile, the economy, financial markets, job cuts, and resume help continue to be the most prominent topics spammers are employing as lures for more traditional attacks. We also saw increased spam activity around the U.S. presidential inauguration and St. Patrick's Day, in keeping with the recent propensity spammers have demonstrated for reading the news and keeping their eyes on the holiday calendar in targeting their attacks.

Virus roundup

In early 2008, a trend emerged in which we saw spam messages with attached viruses (otherwise known as "payload viruses") spiking every Sunday, possibly targeting a maintenance window to catch corporate defenses when they were undergoing scheduled updates.

This year we've seen the payload viruses spread out across every day of the week, with no immediately obvious pattern in their distribution. It's difficult to say for certain what prompted the change, but one possible explanation is that spammers switched tactics because they weren't seeing the success they'd hoped for from the focused attacks.

Of course, payload viruses have also seen a recent spike overall -- in the month of March we saw a 9x increase from February. This pales in comparison to the highs we saw last summer, but it may indicate a developing trend that's worth keeping a close eye on.

Viruses delivered as a blended threat (when a spam message directs a user to a malicious website, which then results in a virus being downloaded to the user's computer) continue to be popular with spammers. E-cards are one of the best examples of this vector, and Valentine's Day saw a flurry of activity using e-cards to direct users to malicious websites.

Conclusions

Spammers continue to prove their resilience -- whether it's bouncing back from the biggest takedown on record or finding new ways to exploit the ways we communicate for malicious purposes, they're clearly here to stay. And Google believes firmly in the power of the cloud to protect your enterprise from them: Outsourcing message security to Google enables you to leverage our technical expertise and massive infrastructure to keep spammers from your door. See how much spam is costing your business, learn how much you could be saving with Google Message Security, or contact us for more information.

Posted by Amanda Kleha, Google security and archiving team

Everything you always wanted to know about keeping email safe...in the cloud

What if we told you that a 35 minute tutorial would teach you everything you needed about keeping your Microsoft Exchange, Lotus Notes, or other on-premise email system safe from spam, malware, and viruses? We hope that you'd believe us, and that you'd give our new "Nuts to Bolts" on Google Message Security, powered by Postini, a view.

Don't have 35 minutes? We know the feeling. The topic overview (on the left) lets you pinpoint the subjects that interest you most.

This tutorial is just one from a growing library of information and resources in our Security and Archiving Learning Center. Find a moment to come in and look around.

Posted by Ellen Petry Leanse, Google Enterprise Team

Fighting spam just got a little easier

Last week, a web hosting service that was a significant source of spam was taken offline by the combined efforts of Security Fix and several Internet providers. Google would like to congratulate Security Fix for leading this effort and striking another blow in the battle to stamp out spam on the web. The removal of this service helps "clean up" the web for everyone, and dovetails with efforts like Google's to make web communications safer and more secure in all of the ways that people use it.

We'll continue to monitor spam traffic, as we always do, but here's what we've seen in the past few days:

On November 11, when the spam source was taken down, we saw a 70% drop in spam from levels seen at the beginning of the month. However, we've seen drops like this before. In late July this year there was a similar drop that was reversed within a few days.

Gmail servers, which also noticed a drop in spam on November 11, are now showing an upward trend as new sources of spam, as always, continue to emerge.
The team at Google stays "on guard" as the fight continues!

Posted by Amanda Kleha, Google Security and Compliance Team

Security Spotlight: July Virus Attacks

Posted by Amanda Kleha, Google Apps Security & Compliance Team

In July, our Postini datacenters saw the biggest volume of email virus attacks so far in 2008, with a peak of nearly 10 million messages on July 24. One of the more prominent attacks in the month involved a spoofed UPS package-tracking link that was intended to lure recipients into clicking on it and downloading malware. Our zero-hour virus protection technology first started catching these emails on July 20.



Many of the viruses we see follow a similar format, in which an email with an embedded website link in the message is changed from what the link displays. Another recent example was a spoofed CNN newsletter sent out by spammers. In this case, the content included current news stories with numerous links in the message. The majority of the links were valid, but there were some that were replaced with malicious links. As soon as our technology started detecting these messages, we implemented a filter to stop these elusive viruses and voila! -- all of our 14 million business users were protected. This network effect and rapid protection against these new tactics is why businesses are increasingly moving their email security into the cloud.

Viruses tend to increase during the summer months, and August is already showing some new types of viruses. On August 5, we saw a large inflow of messages with an encrypted .RAR attachment. The overall 2008 trend has been a decrease in the use of attachments, so this new virus is confirmation that spam doesn't follow trends for long.

These examples are also a good reminder about the importance of educating our colleagues, friends, and family on how to safely interact with email -- namely, that we should all be careful about clicking on links in emails, even if those messages appear to be from people or organizations we know.

Join Google security experts for an upcoming webinar for IT professionals that will explore the topic "How spam is changing your business email, and what to do about it" on Friday, August 15, at 10:00 am PDT.

For more information on how Google can help your business secure its email and web traffic, visit us at www.google.com/a/security.