Google’s introduction of new encryption tools may be one of the most favorable security developments in a while. A New York Times article, Google Offers New Encryption Tool, explains:
The tool, called End-to-End, uses an open-source encryption standard, OpenPGP, that will allow users to encrypt their email from the time it leaves their web browser until it is decrypted by the intended recipient. It will also allow users to easily read encrypted messages sent to their web mail service. The tool will require that users and their recipients use End-to-End or another encryption tool to send and read the contents.
This could be a major blow to the N.S.A. Despite numerous cryptographic advances over the past 20 years, end-to-end email encryption like PGP and GnuPG is still remarkably labor-intensive and require a great deal of technical expertise. User mistakes — not errors in the actual cryptography — often benefited the N.S.A. in its decade-long effort to foil encryption.
The point is: NSA can decrypt or otherwise access just about any message–even if they have to break into your office and install spying tools on your computer. However, they can’t decrypt or steal every message. Even they don’t have that many resources. Increasing the use of encryption makes everyone safer from snoops, whether garden variety or super snoop.