A security vulnerability has been found in Visa Cards which does not exist in MasterCard. Basically, it involves the number of times you can try to process a transaction with an incorrect expiration date (or CVV). Visa allows multiple attempts to process a transaction, and Mastercard allows only 10 attempts before the transaction is blocked not.
Why does this matter? Because if a computer can make an unlimited number of attempts, then it can try different numbers until it guesses the correct number. In this case, criminal that illegally purchased a 16-digit credit card number can (literally) guess different month/year combinations until they find correct information. On average, there are roughly 60 likely month/year combinations that are available for a valid Visa card at any given time. Continue reading “Security Flaw Found in Visa (But Not MasterCard)”
If you use an Android smartphone, you may have a new strain of malware that was discovered today by Checkpoint Security. It’s called “Gooligan” and it has infected approximately Continue reading “How To Check if Your Android Is Infected With New Google Malware “Gooligan””
If you had a Yahoo account in 2014, you should read this to find out what happened, and what you can do about it. The bottom line is, the advice that Yahoo is giving their users is not nearly enough to protect from the scale of this data breach.
The timeline seems to suggest that much of the damage may have already been done because the information has been on sale in the Deep Web for at least two months, or longer. The Yahoo breach, originally thought to have occurred in 2012, actually occurred in Continue reading “The Yahoo! Breach – What Happened, What You Can Do, and Why”
Tired of all of the rules that you have to follow everyday just to be online? The internet was easier … Continue reading New Book Released Today With Simple Tips for Everyday Online Security
A serious vulnerability was discovered today with a common picture file type called “Tagged Image File Format, or TIFF. It is an older type of file, but you probaly have many of then somewhere in your computer right now. Every now and then, a new way to hack a computer is discovered before any bad guys figure it out. Thankfully, that happened in this case.
The vulnerability was reported yesterday by Tyler Bohan of Cisco Talos. He said: Continue reading “Second Stagefright Attack (Averted?)”