Dennis Fisher

About

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

eBay Fixes Reflected File Download Flaw

For many years, eBay has been one of the bigger targets for phishers and many other kinds of attackers and they have been honing their tactics and improving them along the way. Much of their effectiveness depends on convincing users that they’re on the real eBay site and the site recently fixed a vulnerability that […]

Security Questions Not So Secure

The Internet knows a lot about you, including your mother’s maiden name, your favorite food, and what street your first pet grew up on. And, according to some new research from Google, attackers have a good chance of figuring those things out pretty easily, too. The security questions that Google and other companies ask users as […]


​Dennis Fisher talks with security pioneer Marcus Ranum about writing an early Internet firewall at DEC, the security gold-rush era of the 1990s and early 2000s, why he never patented most of the ideas he has come up with and how he found peace of mind.

What happens when you build a watch that is essentially an absurdly powerful computer that also tells time? You have to patch that watch. And that’s what Apple has done for the first time, releasing a long list of fixes for security problems with the Apple Watch OS. At least one of the vulnerabilities can […]

Google has patched a high-risk vulnerability in its Chrome browser that allows an attacker to escape the Chrome sandbox. That vulnerability is one of 37 bugs fixed in version 43 of Chrome. Six of those flaws are rated as high risks and Google paid out more than $38,000 in rewards to researchers who reported vulnerabilities […]

There’s an easily exploitable vulnerability in the Android stock browser that enables an attacker to spoof the URL in the address bar and force a victim to visit a malicious site while believing he is visiting a benign one. Security researcher Rafay Baloch discovered the vulnerability and developed the technique for exploiting it. The problem […]

The attackers behind the TeslaCrypt ransomware, which is one of the newer entries on the scene, may not be making as much money yet as some of their more experienced competitors, but researchers say that their malware is having a profound effect on victims. Like many other pieces of ransomware, TeslaCrypt often spreads with the […]