Available as a free to use software application, Keygloo is a security utility that is intended to help users secure their emails. Designed and developed by Infinitrust, this utility is supported on various Windows platforms such as Windows 98, 2000, NT, Me, and XP versions. This tool offers support for some of the popular mail applications, including Yahoo, Hotmail, and Outlook Express. This tool secures your emails by encrypting them using public key technology. This basically uses 1024 bit RSA encryption algorithms and 256 bit AES to secure your email messages. You can also use this tool to secure your confidential and private files by encrypting them.