What is a rootkit?

For me, it is the evolution of the Trojan Horse concept. It is, in these days, a complete package of trojanized system utilities, with some interesting add-on programs, like specially

XSS Shell

This script in asp permettedi executing of the commandos taking advantage of a bug of the XSSper greater info you can see the video: Code: http://ferruh.mavituna.com/xssshell/demo/ and the shell: Code:

What are the security holes in the Basic Authentication scheme?

The Basic Authentication scheme uses the username and password and encrypts the password using base64 encoding. In spite of this, there are still many security holes in the Basic Authentication