SQLmap 0.9 is out.

sqlmap is an open source penetration testing tool developed in Python that automates the process of detecting and exploiting SQL injection and taking over of database servers.  This makes the tool independent from the operating system. sqlmap relies on the Metasploit Framework for some of its post-exploitation takeover features.

Hiding files in ADS (Alternate Data Streams) in Windows

Alternate Data Streams exists in NTFS file streams which can be used to hide sensitive information, even worms, trojans etc. We can hide files in ADS of folders & files. Using ADS required little skill & this security issue is relatively unknown to people. To begin, open cmd & make a folder.
#mkdir C:\folder
#echo this is hidden text > folder:secret
Now, open the folder & check whether there is any file. You will find no file there. The file is in ADS of directory 'folder'.

Knowing QR code.

QR code

QR code stands for Quick Response code which is a 2D bar code, readable by dedicated QR barcode readers and camera phones. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be text, URL or other data.
You can have an idea about QR code from this link