Category Archives: SMS Fraud

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 […]

Phishing in the iCloud and Vegas

Up noticeably this month, a new form of broader bank phishing attacks seems to be targeting various parts of the U.S. including Las Vegas where 63 percent of all reported SMS spam turns out to be bank phishing. The trend continued during the finals days of August as an average 46 percent of all reported […]

Defcon 2014: Blackphone Beefs Up Android Security

The vendor area at Black Hat goes by the name of The Business Hall, and that sums it up. It is full of security companies, large and small, pitching their products in typical trade show fashion. The vendor area at Defcon is not like that. It is a jumble of vendors selling hacker equipment, lock […]

Black Hat 2014: Cellular modem vulnerabilities threaten mobile users

Mobile broadband modems are small USB sticks that connect a computer to the internet through a cellular network. The great convenience of being able to stay connected outside of areas with Wi-Fi has led to over 100 million of these devices being sold. However, security flaws in these ubiquitous modems may become a boon for cybercriminals. […]

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 […]

Spammers Tap Regional Operators to Send SMS Spam from U.S. To Malaysia and Mexico

Cloudmark has observed that in some cases different categories of SMS spammers target different types of US Regional Mobile Operators, also known as tier 2 or tier 3 operators. Mobile operators are divided into different tiers depending on whether they fully own the network that they use to deliver voice and data services (tier 1), […]

Guatemalan scammers taking lessons from Nigeria?

When it comes to exports and Guatemala, we generally think coffee. However, while poring over our Mobile messaging data, we discovered another Guatemalan export: Nigerian-style scam campaigns. Over the past two to three years, mobile phone users in the USA have been receiving SMS messages, originating in Guatemala, informing them that they have won a […]

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