iCloud Possibly Suffered A Privacy Breach Last Year That Apple Kept a Secret
Late last year when an unknown group of hackers stole secret access tokens for millions of Facebook accounts by taking advantage of a flaw in its website, the company disclosed the incident and informed its affected users. Similarly, when Twitter was hit by multiple vulnerabilities (#1, #2, #3) in the last few months, the social media company disclosed those incidents and informed its affected 
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