iCloud hack

The software developer credited by Apple for discovering last year’s developer center flaw says that he informed Apple of an iCloud weakness that may have been used to obtain celebrity nudes more than six months before the photos were accessed.

The Daily Dot reports that Ibrahim Balic advised Apple in March of a Find My Phone weakness that would allow brute-force attacks on iCloud accounts. It has been suggested that this may have been one of the methods used to access the accounts – or even complete iPhone backups – of celebrities … 
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A YouGov survey of more than 1,000 American consumers commissioned by security company Tresorit found that just over a third of them have taken steps to beef-up their online security in response to the iCloud hacks.

The most common response was to change passwords for stronger ones, with 13 percent creating different passwords for each online service and 6 percent enabling two-step verification … 
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There are still many unknowns surrounding the leaked celebrity nudes. While Apple appears to have ruled out a theory that a Find My iPhone vulnerability allowed easy brute-force password attacks, some commentators are suggesting that the wording was sufficiently vague that this may indeed have been one route in. (Apple might be arguing that it’s not a breach if the correct password was required.)

But one thing does now appear clear: rather than a single hacker gaining wide access to iCloud, the photos were instead amassed over time by a number of different individuals likely using several different approaches. Phishing was doubtless one of them – some of the claimed emails from Apple are reasonably convincing to a non-techy person – but another was almost certainly to exploit one of the greatest weaknesses found in just about every online service, including iCloud: security questions.

[Update: Tim Cook has confirmed these were the two methods used] …

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A forensics consult and security researcher who analyzed metadata from leaked photos of Kate Upton said that the photos appear to have been obtained using software intended for use by law enforcement officials, reports Wired. The software, Elcomsoft Phone Password Breaker (EPPB), allows users to download a complete backup of all data on an iPhone once the iCloud ID and password have been obtained.

If a hacker can obtain a user’s iCloud username and password with iBrute, he or she can log in to the victim’s iCloud.com account to steal photos. But if attackers instead impersonate the user’s device with Elcomsoft’s tool, the desktop application allows them to download the entire iPhone or iPad backup as a single folder, says Jonathan Zdziarski, a forensics consult and security researcher. That gives the intruders access to far more data, he says, including videos, application data, contacts, and text messages …

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The FBI is now leading the investigation into the alleged iCloud hack in which nude photographs of a number of celebrities were obtained, reports the Telegraph. FBI spokesperson Laura Eimiller said:

[The FBI is] aware of the allegations concerning computer intrusions and the unlawful release of material involving high profile individuals, and is addressing the matter. Any further comment would be inappropriate at this time.

It has been suggested that a vulnerability in the Find My Phone service may have allowed attackers to brute-force passwords in order to access the iCloud accounts of celebrities … 
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The Next Web is reporting that a vulnerability in the Find My Phone service may have allowed attackers to brute-force passwords in order to access the iCloud accounts of celebrities.

The vulnerability allegedly discovered in the Find my iPhone service appears to have allowed attackers to use this method to guess passwords repeatedly without any sort of lockout or alert to the target. Once the password has been eventually matched, the attacker can then use it to access other iCloud functions freely.

A tool to exploit the weakness was uploaded to Github, where it remained for two days before being shared on Hacker News … 
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