Dennis Fisher

About

Dennis Fisher is a journalist with more than 13 years of experience covering information security.

Device-Locking Ransomware Moves to Android

UPDATE–Ransomware has been wreaking havoc on desktops for many years now, with attackers demanding that victims pay a fee to unlock the infected system. This kind of malware hasn’t been a huge issue yet on mobile devices, but that’s beginning to change, albeit slowly. A new piece of mobile malware targeting Android is being sold by the same group responsible […]


There’s a remotely exploitable vulnerability in several versions of the Google Search Appliance that could allow an unauthenticated attacker to execute a cross-site scripting attack and run a script in the context of the user’s browser. The Google Search Appliance is an enterprise product that enables users to search for content from a wide variety […]

Bug bounties once were restricted mainly to large software companies such as Mozilla and Google. But the success of these programs has led many other infrastructure and product companies, including Yahoo, Facebook, Barracuda, PayPal and even Microsoft, to launch their own reward systems. Now, the phenomenon has spread to individual developers. Looking at the list […]

The White House wants you to know that it did not know about the OpenSSL Heartbleed vulnerability before you did. The White House also wants you to know that administration officials don’t think stockpiling zero days isn’t necessarily good for national security. That’s all well and good, except that it mostly doesn’t matter.

A couple days after Microsoft warned users about a new vulnerability in Internet Explorer that’s being used in targeted attacks, Adobe on Monday said that researchers have discovered a zero day in Flash, as well, which attackers are using to target victims in Syria through a watering hole attack on a compromised Syrian government site.