Dennis Fisher

About

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

Belkin Patches Directory Traversal Bug in Wireless Router

There’s a serious security vulnerability in the Belkin N150 wireless router that can enable a remote, unauthenticated attacker to read any system file on a vulnerable router. The bug is a directory traversal vulnerability and the CERT/CC advisory says that all versions of the router that are running firmware up to and including firmware version […]

AT&T Warns Customers of Data Breach

AT&T has notified some of its mobile customers that employees of one of its contractors accessed some customer information, including birth dates and Social Security numbers, in an effort to generate codes that could be used to unlock devices. The company did not specify how many customers were affected by the breach,Ā and it doesn’t appear […]

Ten Years Later, Cabir Worm’s Place in History is Unique

It’s difficult to remember now–and seems quaint even if you can recall it–but there was a time in the not-so-distant past when industry analysts and security experts were worried about the coming mobile malware apocalypse. Self-replicating malware would soon be flooding our phones, deleting our coveted ringtonesĀ and preventing us all from playing Snake. Mobile phones […]


Banker Trojans have proven to be reliable and effective tools for attackers interested in quietly stealing large amounts of money from unwitting victims. Zeus, Carberp and many others have made piles of money for their creators and the attackers who use them, and researchers have been looking at a newer banker Trojan that has the […]

As the uncertainty surrounding the end of TrueCrypt continues, members of the security community are working to preserve a known-good archive of the last version of the open source encryption software released before the developers inserted a warning about potential unfixed bugs in the software and ended development.

There’s a reflected cross-site scripting vulnerability in a variety of Cisco security appliances that enables a remote, unauthenticated attacker to execute arbitrary code in the context of the user. The vulnerability affects the Cisco Email Security Appliance, the Cisco Web Security Appliance and the Content Security Management Appliance. Cisco has released updated software to fix […]

Apple enthusiasts have been poring over the feature list for iOS 8, due out this fall, geeking out over the tighter integration among all iOS devices, the improved mail app and myriad other bells and whistles. But perhaps the most important change is a subtle one hidden beneath the covers that will help prevent much […]