Category Archives: URL Shorteners

Cloudmark’s Annual Global Threat Report for 2015

Cloudmark’s Annual Threat Report for 2015 is now available and covers the following topics: A look at how enterprises are trying to combat spear phishing and how well these attempts succeed or fail, according to a new survey of 300 companies How the Swizzor malware propagates by camouflaging itself to evade spam filters The risks for brands […]

Black Hat 2014: Why I Hate Free Stuff

I was watching an excellent presentation by Rob Ragan and Oscar Salazar when I realized that I hate free stuff. Not of course the free stuff that I use, I’m fine with that. It’s all the free stuff that spammers and other cyber criminals exploit that ticks me off. Let me explain what Ragan and […]

How Spammers are Abusing Twitter’s t.co URL Shortener

URL shorteners such as bit.ly, goo.gl, and t.co have long been used by spammers. They provide an unlimited source of different URLs which can be used in emails to disguise the final landing page. The major companies providing this service all have anti-abuse filters in place to attempt to control this sort of malicious activity. […]

Glide video messaging app continues to generate high levels of SMS spam complaints

Earlier this year we were seeing a number of reports of SMS spam related to Glide.me, which is a mobile video messaging app. Tried video texting? http://i.glide.me/join Ready for Glide? http://i.glide.me/join Seen Glide? http://i.glide.me/join Tried video texting? http://i.glide.me/join Glide.me has had a history of spam, including where they admitted that they were spamming and would […]

SMS Phishers Exploit Twilio and ow.ly to Steal Mobile Account Logins

Via the GSMA Spam Reporting Service, we’ve been receiving reports of an SMS phishing attack aimed at the customers of several large mobile providers in the US. And in an unusual twist, the phishers are trying to evade anti-abuse services by showing their malicious content only to mobile users. More than a quarter of a million mobile users. The […]

Cloudmark’s 2013 Annual Global Messaging Threat Report

As the Chinese New Year rings in the year of the Horse, we’re also excited to announce the release of our 2013 Annual Global Messaging Threat Report. Looking back at the year, we discuss the evolving realm of highly targeted, regional SMS spam campaigns, spammers’ preference for financial themes, Apple iMessage abuse, dramatic increases in […]

Rise in iMessage spam related to Luxury Goods

Over the weekend I received my first iMessage spam. Here’s a screenshot of the spam message: After asking around at Cloudmark, lots of other people also received a similar spam message, so we decided to look in Cloudmark’s Spam Reporting Service (SRS) to see if we could quantify the scope of the attack. The Spam […]

Cloudmark’s Q2 2013 Threat Report

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 […]

FTC charges 29 defendants for sending 180 million spam text messages

Today the Federal Trade Commission (FTC) announced that they have charged 29 defendants with collectively sending 180 million unwanted text messages. The text messages advertised “Free” Gift cards or prizes from major retailers such as Best Buy, Walmart and Target.  However, consumers who clicked on the links contained in the text messages were required to provide […]

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