Hackers broke into the official Twitter account of the Russian Prime Minister Dmitry Medvedev and posted a spoof message saying he was quitting.
The fake tweet had Medvedev saying: "I am resigning. I am ashamed of the government's actions. I'm sorry." Medvedev's office rushed to confirm his account was hacked.
Using an informal version of the President Vladimir Putin's first name, the hacker tweeted: "I have long wanted to tell you. Vova! You are wrong!"
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