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Intelligence Briefings from the War on Spam

Archive for the ‘Cloudmark’ Category

As Predicted, Ransomware is the Latest Mobile Threat


Wednesday, June 18, 2014 by Andrew Conway

Another one of Cloudmark’s predictions for 2014 has proved to be correct. Last December our CTO Neil Cook wrote: Malware has also kept up a steady migration to the mobile space with ransomware set to be a logical next step in future. In its simplest form, ransomware could simply copy sensitive information from the phone […]

Email Blacklists and Cloudmark’s Sender Intelligence (CSI)


Tuesday, June 17, 2014 by Angela Knox

Return Path Infographic Return Path recently published an infographic guide to public email blacklists.  As the infographic explains “Public email blacklists are lists of IP Addresses and domains that have been reported and listed as “known” sources of spam.” These lists are used by both large email box providers and enterprises to make decisions about […]

Cruises and Stolen Tax Returns in the Windy City


Monday, June 16, 2014 by Tom Landesman

We’ve seen an interesting shift in Chicago’s SMS spam over the past few months. At the start of 2014, up until mid-April, bank phishing attempts had been the dominate flavor of SMS sent unsolicited to phones in the city. However, Floridian Cruise spam has taken a big jump in numbers this spring. So far this […]

World Cup Generates World Wide Spam


Friday, June 13, 2014 by Andrew Conway

As World Cup fever takes the globe by storm, spammers are capitalizing on the excitement around the event. Here’s an extract from one example we have seen. It’s an advanced fee scam, similar to the “Nigerian Gold” or “Spanish Prisoner” con tricks. The victim is asked to pay an ever increasing series of fees in order […]

How to Report Text Message Spam: iOS7 iPhone


Tuesday, June 03, 2014 by Tom Landesman

Plagued with annoying spam texts on your iPhone? Report them to the GSMA spam reporting service! On most networks this can be done by forwarding them to 7726 (that’s S-P-A-M on your phone’s keypad.) Reporting these spam messages helps your mobile operator to take action against spammers and prevent further spam. Please note: while many mobile […]

Spammers used eBay data breach as hook to sell background check service


Wednesday, May 28, 2014 by Andrew Conway

Spammers are starting to exploit the widespread publicity around the eBay data breach to attract attention to their emails. Last week we saw a spam attack that looked like this: Hey [redacted], Did you hear about he eBay Hack Attack? Its the Second Largest in US History. Hackers gained access to its entire database of […]

Your spam reports to 7726 shut down a UK SMS spammer


Thursday, May 22, 2014 by Stuart Paton

The ICO (Information Commissioners Office), a UK regulator, raided the premises of a SMS spammer today, successfully confiscating equipment and SIM cards used in the spam attacks. The GSMA Spam Reporting Service, powered by Cloudmark, which has been provided to the four main UK Mobile operators (EE, Vodafone, Telefonica O2 & 3) for just under […]

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 […]

Mobile malware for bitcoin mining, one of our 2014 predictions


Wednesday, April 30, 2014 by Mark Stemm

At the end of last year when we looked at our Messaging Security Predictions for 2014, one of the threats we thought we might see is malware on mobile devices devoted to Bitcoin mining. We may have to wait until the end of 2014 to see if our other predictions come true, but this one […]

AOL’s DMARC change fends off Com Spammers attack, but data breach still not explained


Tuesday, April 29, 2014 by Andrew Conway

In the past two weeks it’s quite possible that you received spam apparently from a friend’s AOL account, saying something like Have a nice day or People say it really works and then a link to what looks like a news magazine web site talking about diet pills. Here’s one of several that I received. […]


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