Google this week announced improvements in its encryption for Gmail and several other services.

"The company is enabling what is called "forward secrecy" by default, Adam Langley from Google's security team, wrote in a blog post yesterday," writes CNET News' Elinor Mills.

"With forward secrecy, the private crypto keys for a connection are not kept in persistent storage, which would allow an adversary to decrypt past connections by breaking a single key," Mills writes. "Forward secret HTTPS (Hyper Text Transfer Protocol Secure) is live for Gmail, Google Docs, SSL (Secure Sockets Layer) Search and Google+."

Go to "Google future-proofs your email, documents from spies" to read the details.

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