So a user simply has to chose a password and then the PGP system does all of the encryption and makes the file or the message secure.

NPR: The Math Behind Pellicano's Code

Things like measuring and reducing attack surface, self-defending data, damage-potential effort ratios, fully homomorphic encryption, and end-to-end message confidentiality.

FORBES: Work will find a way: manage the true risk

Obviously for readability reasons this original message could not have been encrypted (also Tor does not provide encryption), but it could have been anonymized as to location and that is precisely what Tor was designed for.

FORBES: The General, The Biographer, And Unencrypted Email

Complex but publicly available encryption could also be used, but using this technology could draw attention - rendering regular message boards and groups a safer way of operating.

BBC: NEWS | In Depth | A web wise terror network

Tuesday afternoon, Digg CEO Jay Adelson had posted a message on his blog explaining that the site was removing links to articles that featured the newly cracked HD-DVD encryption key, which can be used to decrypt the high-definition discs and copy their content.

FORBES: Digg's DRM Revolt