Subscribe to RSS Feed

Cloudmark Blog

Intelligence Briefings from the War on Spam

Archive for the ‘Online Security’ Category

Defcon 2014: How should home routers get secured?


Monday, August 11, 2014 by Aaron Lehmann

The risk posed by vulnerable home internet routers was a common theme at this year’s Black Hat and DEF CON conferences. These devices are becoming notorious for having security vulnerabilities, which often go unpatched. The SOHOpelessly Broken contest at DEF CON provided a dramatic demonstration of these flaws, as contestants attacked consumer-grade routers and quickly broke into them. But […]

Anti-Virus the Cloudmark way


Monday, May 12, 2014 by Andrew Conway

Symantec is now admitting that traditional anti-virus solutions are losing the war against computer malware, according to a recent article in the Wall Street Journal. “Antivirus is dead,” says Brian Dye, Symantec’s senior vice president for information security. . . . hackers increasingly use novel bugs. Mr. Dye estimates antivirus now catches just 45% of […]

Snapchat Exploit Leads to 4.6 Million Exposed Records


Friday, January 03, 2014 by Tom Landesman

Snapchat may have had less than a happy New Year thanks to the authors of SnapchatDB.info. The site, released on December 31, features approximately 4.6 million Snapchat users’ username, phone number, and area-code-derived geographical region. These records were collected using an exploit published by Gibson Security who has been exploring the undocumented Snapchat API for […]

The Authentication Arms Race


Wednesday, December 18, 2013 by Andrew Conway

At Cloudmark, we have long recognized that we are in an arms race against the spammers. Spammers are continually trying to come up with new techniques for getting through our spam filters, and we are constantly monitoring their activities and staying one step ahead. It seems that the same thing is now happening in the […]

Cloudmark’s Q2 2013 Threat Report


Wednesday, July 24, 2013 by Tom Landesman

Today, Cloudmark has released its Q2 2013 Threat Report, covering recent messaging threats and trends during the past quarter. During the second quarter, fishy dieting offers and suspiciously free cruises made a splash on the SMS side of things. Meanwhile, a substantial uptick suggests compromised web hosting accounts seem to be making waves among seedier […]

How to stop spammers mining your Facebook profile


Tuesday, June 25, 2013 by Andrew Conway

Techcrunch reported this week that an app developer had downloaded thousands of phone numbers from active Facebook accounts.  This technique has been around for a while and Cloudmark has seen it used by spammers to harvest email addresses and phone numbers, and to make both email and SMS spam more personal and more convincing. The […]

Spammers hacking web servers to host porn, send spam


Monday, April 22, 2013 by Andrew Conway

For a long time we’ve been seeing spammers systematically compromising other people’s web sites to use URLs on them to redirect to the spammers landing page. This allows them to have a far greater range of call to action URLs in email spam. A recent attacker is not only using hacked web sites as redirectors, […]

2013’s First Quarter at a Glance


Wednesday, April 17, 2013 by Cloudmark

With the close of 2013’s first quarter, we’ve released our Q1 2013 Global eMessaging Threat Report detailing a myriad of SMS and IP spam statistics, trends and observations from the past three months. Paramount among them is a set of allegations leveled by the Federal Trade Commission (FTC). These filings contended that the defendants were […]

URL Redirection Abuse


Friday, February 22, 2013 by Chris Barton

It’s great to see Twitter taking the lead on the URL shortener security. Twitter acquired Dasient earlier in the year and it’s refreshing to see them being put into action securing the t.co linkage and what’s more t.co is now going to front more and more links seen in the service. Further reading: http://www.telegraph.co.uk/technology/twitter/9883076/Twitter-shortens-tweets-by-two-characters.html Since […]

Ringing the Bell for Cyber Security Awareness


Tuesday, October 16, 2012 by Mary Landesman

October is National Cyber Security Awareness Month. In recognition of that, the National Cyber Security Alliance teamed up with the Department of Homeland Security and the security industry to sponsor the opening bell ceremony at NASDAQ. Held at 4 Times Square on Monday, October 15, the principal bell ringer was Jane Holl Lute, Deputy Secretary […]


Learn More About Cloudmark:

Our Products
News and Events
Site Map  •  Privacy Policy  •  ©2002–2014 Cloudmark, Inc.