Social media can prove useful in investigations, but the use of Twitter and other tools by authorities has backfired at times
A researcher said Facebook and many others also use a loophole to get around browser privacy policies
Some sites that could be phishing operations claim to be the relaunched Megaupload
The hacker group Anonymous said it has taken down sites run by a number of government and content organizations
TextSecure, an Android text messaging client for encrypting messages, is up on GitHub now and other products will follow
Also, Carrier IQ has repeated its assertion that the mobile-phone software doesn't collect personal information
It expects that public cloud providers will start offering the service in the first quarter
Software from Whisper Systems offers full disk encryption and other security software for Android phones
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