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The iPhone 4S' new voice-activated Siri personal assistant will allow a complete stranger to control your phone even if it's locked with a passcode.
"I borrowed a passcode-locked iPhone 4S from a colleague here at Sophos and, with his permission, was able to write an email, and send a text message," writes Sophos' Graham Cluley. "If I had wanted to I could have meddled with his calendar appointments too."
"What's disappointing to me ... is that Apple had a clear choice here," Cluley writes. "They could have chosen to implement Siri securely, but instead they decided to default to a mode which is more about impressing your buddies than securing your calendar and email system."
Go to "Has Siri left your iPhone 4S unlocked?" to read the details.
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