ClsHack:Computer Security Blog    

The captcha was death for spam bots.
Through the CAPTCHA is possible to make our applications more secure from spammers and bots.

Da wikipedia:

A CAPTCHA is a type of challenge-response test used in computing as an attempt to ensure that the response is generated by a person. The process usually involves one computer (a server) asking a user to complete a simple test which the computer is able to generate and grade. Because other computers are assumed to be unable to solve the CAPTCHA, any user entering a correct solution is presumed to be human. Thus, it is sometimes described as a reverse Turing test, because it is administered by a machine and targeted at a human, in contrast to the standard Turing test that is typically administered by a human and targeted at a machine. A common type of CAPTCHA requires the user to type letters or digits from a distorted image that appears on the screen.

An example:

Today we see how to bypass these protections :D

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Carry forward the article written by the founder of the project BackBox which helps us to understand how is the build of backbox :)
This article can also be used for other distributions like ubuntu or xubuntu backbox and derivatives :)

An article like this can be found here:
KLA[much less detailed]

I copy the article step by step :)

Raffaele Forte:

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Also on twitter find useful pdf :)
This pdf is very useful for a PHP Code Review :)
Cheat Sheet These are useful reminders while you are programming in php to write a secure code, What many do not :)

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Even this time, thank you twitter for profits that are posted pdf :)
Here are some Cheat Sheet to use as a reminder after entering a system, windows linux o mac :)

Are refreshed files and folders that contain useful information :)
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On Android does not always have all the tools to perform a penetration test optimal for this I decided to start on debian 6 :)

Io ho android 2.3.4 so I had to edit the startup script for a moment to make a chroot :)
The requirements are:

• busybox;
• root access;
• at least 1 gb of space;
• terminal emulator;

The result is simply fantastic :D

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