The links to various free/opensource programs most useful and interesting of April – special about security:
AxCrypt secure crypt/decrypt files (32 and 64 bit versions)
BlackBox computer monitor solution software, report via email and cell phone
BtProx allows to block/unblock computer with devices connected via bluetooth
USB Flash Security protect memory USB flash data by password
McAfee RootkitRemover standalone tool scan for rootkits
NetworkPasswordDecryptor allows to find stored network passwords
Web Proxy Checker check proxy with and without authorization