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Yesterday in the early hours of the morning on the internet forum 4chan discovered a large number of sensitive photos of famous celebrities, including Jennifer Lawrence, Kate Upton or Kaley Cuoco. Private pictures and videos were obtained by the hacker from the accounts of the affected persons, which in itself has no obvious connection with Apple, however, the attacker allegedly used a security flaw in iCloud to get access to the photos.

So far, it has not been confirmed whether the photo comes directly from Photo Stream, or whether the attacker just used iCloud to obtain the passwords to the accounts in question, however, it is quite possible that an error in one of Apple's Internet services is to blame, which made it possible to obtain the password using the brute force, i.e. by brute force guessing the password. According to the server The Next Web the hacker exploited the Find My iPhone vulnerability, which allowed unlimited password guessing without locking the account after a certain number of failed attempts.

Then it was enough to use specialized software iBrute, developed by Russian security researchers as a demonstration during a conference in St. Petersburg and made it available on the GitHub portal. The software was then able to crack the password to the given Apple ID by trial and error. Once the attacker had access to the email and password, they could easily download photos from Photo Stream or gain access to the victim's email page. Initial reports said the photos were obtained from a hack of Apple's photo storage, but many of the leaked photos were apparently not taken with an iPhone, and many were missing EXIF ​​data. So it is possible that some of the photos come from e-mails of celebrities.

Apple fixed the mentioned vulnerability during the day and said through its press spokesperson that it is investigating the whole situation. The actual way a hacker or group of hackers got hold of intimate photos of actresses and models is likely to be known in a few days. Unfortunately, to their detriment, the celebrities reportedly did not use two-step verification, which would otherwise prevent password-only account access, as an attacker would have to guess a random four-digit code, greatly minimizing the chance of accounts being compromised.

Source: Re / code
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