What are the various methods of passive OS fingerprinting?

In passive OS fingerprinting, an attacker installs a sniffer on any third party such as a router on which the victim communicates frequently. Now he studies the sniffer’s log and

How to Detect a Hacker Attack

If a hacker breaks into your computer, just noses around, and makes no changes to your computer, it’s not easy to tell he’s been there. There’s no alert that says,

Error Messages

Error Messages Overview Think about these questions. * Why are Error Conditions and Error Messages a security problem? * What’s wrong with error conditions? * Wouldn’t an administrator want the