Category Archives: Phishing

U.S. SMS Phishing Attacks on the Rise this Fall

SMS Bank and account phishing in the U.S. more than tripled in September and continues as the nation’s number one category of reported SMS. However, some very notable cities such as New York City have dodged these malicious attempts at users’ financial and account details. Over the past two months, we’ve seen a sharp increase […]

Celebrity Nudes and iCloud Phishing

The recent leak of celebrities personal photographs demonstrates just how weak our defenses are against determined attackers. From the internal evidence and the chatter on 4chan and Reddit, it does not look as if this was the result of a single attack or a single hacker. Various sources say that there was a ring of […]

Cloudmark’s 2014 Q2 Global Messaging Threat Report

Spammers and attackers in both email and SMS were quick to redouble their efforts this quarter. In our 2014 Q2 Global Messaging Threat Report, we take a look at some of these various new trends popping up around the world. Comically, email phishers were quick to exploit the Heartbleed exploit without using the exploit. Deploying […]

Cruises and Stolen Tax Returns in the Windy City

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 […]

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 […]

Will Yahoo Mail data be used for Phishing?

Yahoo Mail announced a security attack yesterday where they observed hackers had been logging into peoples’ Yahoo email accounts using usernames and passwords that appeared to come from a third party who had access to this information. A Yahoo news article said that “A malicious computer program armed with Yahoo Mail passwords and usernames apparently […]

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 […]

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