A recent infographic released by file sharing application provider Watchdox shows the unfortunate truth that when it comes to protecting your data, companies have yet to take the necessary due care to mitigate damage from data breaches due to the fact many employees use non-secure methods for sharing sensitive data. Leading the study in breaches is plain text email attachments (contrary to popular belief anything you send via email usually is visible to literally anyone with access to the servers handling the traffic), USB drives, unencrypted hard drives, and Dropbox (which has been criticized for allowing the decryption of files if needed under circumstances outlined in their terms of service and security policy).
Overall the solution to the problem is that businesses of all sizes need to be familiar with methods to secure their data and also the security policies of the services used to process data. The simplest and most effective way to address this issue is to add your own layer of encryption to your data.
Although there are plenty of paid encryption suites on the market, one of best suites for: individuals, small businesses, and mid sized companies is TrueCrypt. The application is an open source tool which allows users to choose from a wide array of encryption algorithms including government grade algorithms which are used by the National Security Agency, Central Intelligence Agency, and many other agencies where security is a top priority.
Although the application is open source, meaning the code is in the open for anyone who wants to view it, TrueCrypt is a very respected solution which is hardened thanks to a very active developer community. Additionally as the encryption has no backdoors at all, users do not have to worry about unwanted viewing of files by anyone without the proper credentials.
NOTE:? Due to various regulations and embargos on exporting encryption technology, TrueCrypt is only for use by US Citizens – although for full details, prospective users must consult the TrueCrypt legal pages