Encryption is the most effective way to achieve data security .
To read an encrypted file , you must have access to a secret key or password that enables you to decrypt it. Electronic Frontier Foundation home page The Electronic Frontier Foundation, the civil liberties union of cyberspace, offers links to Internet security issues, news, a net guide, calendar, organizational information, and alerts. This page lists international sources of cryptographic software, information on cryptographic methods, algorithms, and protocols. NIST computer security resource clearinghouse National Institute of Standards and Technology's computer security resource clearinghouse. It contains information on numerous security topics, as well as alerts about viruses and other security threats.