We’ve all heard the admonition a couple of times to secure our confidential data before sending it as an email attachment. Even a simple password-protected zip file is still better than nothing. On the high end, email encryption using tools like PGP, or the one included with Astaro Security Gateway will insure that your email is protected from prying eyes. There are free tools out there like AxCrypt, the open source file encryption software which allows you to encrypt single files or folders. I have seen a lot of clients sending off bank statements, credit card and social security numbers via email without encryption or protection.
