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Google, Facebook, Twitter, and Microsoft are all now using PhotoDNA, which lets them track images depicting child exploitation.
The world's largest social network has joined the PhotoDNA program, which was developed by Microsoft Research with help from Dartmouth College.
The software giant, along with a Swedish technology company, is providing photo-identification technology free of charge to law enforcement to help detect and thwart child abuse.
Google and Microsoft today introduced measures to tackle online child abuse -- but critics say the restrictions "will mean very little."
Web giants agree to modify search algorithms to exclude search terms associated with photos and videos containing sexual abuse of children.
It's an Internet-wide problem that Facebook, among many others, is proactively trying to combat.
The search giant is creating a database of images depicting child exploitation -- to be shared with tech companies, law enforcement, and charities -- in order to scrub the images from the Internet.
Google unveils its plan to turn your phone into a mobile wallet, while Microsoft unwraps a slew of updates for its Windows Phone 7. Also: Apple battles MacDefender.