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It does something with the verification of security certificates requiring user to change a file on the computer after plugging in the device.
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The doulCi hack disables the iCloud’s security feature using a vulnerability found in Windows version of iTunes.
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It has been created by iOS hackers who go by the names AquaXetine and MerrukTechnolog on Twitter. Until now there was no easy workaround to bypass this security feature by Apple, however things have changed with the release of doulCi. The activation lock takes advantage of the last used iCloud details asking them to be entered after the device as been restored. The feature basically prevents unauthorized person from restoring a device that does not belong to him in an attempt to delete data of the original owner. Apple’s iCloud Activation lock was introduced back in 2013 to prevent thieves from successfully wiping a stolen iOS device.
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