The US State Department has taken the unprecedented step of shutting down its entire unclassified email system as technicians repair possible damage from a suspected hacker attack.
After receiving flak for its newly introduced 'read receipts' feature from users around the world, WhatsApp has now updated the app with a new setting that lets users disable the feature - giving some a sense of relief.
Rocket Internet, the global e-commerce investor, expects to launch at least another 10 start-ups in 2015 and said it would work more closely with Facebook on advertising.
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