Tag Archives: SMS

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 […]

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), […]

The Authentication Arms Race

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 […]

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 […]

Vodafone New Zealand supports 7726 to report SMS spam

A recent article from New Zealand indicates that Vodafone New Zealand also encourages their users to report SMS spam to 7726 (S-P-A-M). (See: http://www.theaucklander.co.nz/news/txt-for-trouble/1080298/) “Vodafone says if a customer does receive spam they should forward the message to 7726…” Vodafone also lets you know how to report your complaint to the  New Zealand government’s Department of […]

Mobile Messaging Senders Need to Play by the Rules Too

Cloudmark provides spam and abuse filtering for email, text messaging and social networking traffic.  So in addition to encouraging email senders to follow good email sending guidelines, we also want text message senders to follow good text message sending guidelines. Over on tatango, which is an SMS Marketing Blog, they have a good write up […]

Why Network Level Protection is Better than Device Patches for Vulnerabilities like the Charlie Miller iPhone SMS Vulnerability

The recently announced SMS vulnerability discovered by Charlie Miller that affects Apple iPhone, Palm Pre, Windows Mobile and Google Android devices highlights the importance of network level protections for the mobile network. The vulnerability, which can enable an attacker to gain full access of a device by sending specially coded SMS messages to the device, […]

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