I am using John the Ripper to crack a copy of the passwd file at my work. I want to alert users that have weak passwords. I happen to know that many accounts have the default password which i...

Listing 7.1 The Decryptor of the Cascade Virus lea si, Start ; position to decrypt (dynamically set) mov sp, 0682 ; length of encrypted body (1666 bytes) Decrypt: xor [si],si ; decryption key/co...

I've just finished a library in Objective-C that I compiled as a Static Library for distribution. I'd wanted to know what chances to get this decompiled are out there. Do you know any software t...

Is there any way to decrypt the encrypted MD5 string, given the key?

Is there any way of detecting that a debugger is running in memory? and here comes the on Form Load pseudocode. if debugger.IsRunning then Application.exit end if Edit: The original title was "...

Let's say you recently discovered some major vulnerabilities in a couple of websites that activate mainly in your country and are very powerful in their market. The vulnerabilities I'm talkin...

I mean, I always was wondered about how the hell somebody can develop algorithms to break/cheat the constraints of legal use in many shareware programs out there. Just for curiosity.

I am a web developer that is very conscious of security and try and make my web applications as secure as possible. How ever I have started writing my own windows applications in C# and when it co...

I know that there is no way to fully protect our code. I also know that if a user wants to crack our app, then he or she is not a user that would buy our app. I also know that it is better to impro...

My dad called me today and said people going to his website were getting 168 viruses trying to download to their computers. He isn't technical at all, and built the whole thing with a WYSIWYG...