Category Archives: Cyber Security

New SIM Card Vulnerability Opens Possibility for Surveillance and Fraud

Security researcher Karsten Nohl of Security Research Labs in Germany recently announced a new vulnerability in older SIM cards. This allows a hacker to take over your phone to listen in on your phone calls or send SMS messages to premium rate numbers. The attacker sends an invalid binary SMS message to the phone, and […]

How to stop spammers mining your Facebook profile

Techcrunch reported this week that an app developer had downloaded thousands of phone numbers from active Facebook accounts.  This technique has been around for a while and Cloudmark has seen it used by spammers to harvest email addresses and phone numbers, and to make both email and SMS spam more personal and more convincing. The […]

Ringing the Bell for Cyber Security Awareness

October is National Cyber Security Awareness Month. In recognition of that, the National Cyber Security Alliance teamed up with the Department of Homeland Security and the security industry to sponsor the opening bell ceremony at NASDAQ. Held at 4 Times Square on Monday, October 15, the principal bell ringer was Jane Holl Lute, Deputy Secretary […]

Severe Surge in SMS Phishing Attacks

During the first week of September, Cloudmark observed a 913% increase in the volume of SMS phishing attempts, making SMS phishing currently the single largest SMS text messaging threat. The surge appears to be the result of a single set of attacks which initially started on September 4th. Thus far, attackers have used over 500 […]

Highlights from IETF 82 in Taipei

The Internet Engineering Task Force met in Taipei in mid-November. Cloudmark was in attendance, working to advance several things through the IETF processes, including a new working group that will produce protocols and advice documents relevant to reputation services (see my previous posts about DKIM and domain reputation); creation of a working group seeking advancement […]

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