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Apple Used DMCA Takedown to Temporarily Remove Tweet With iPhone Encryption Key

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Apple recently used the Digital Millennium Copyright Act (DMCA) to get Twitter to remove a viral tweet that featured an iPhone encryption key, provoking the ire of the security community, reports Motherboard.

On December 7, security researcher “Siguza” on Twitter shared an encryption key that could potentially be used to reverse engineer the ‌iPhone‌’s Secure Enclave, which handles encryption for the device.


Just two days later, a law firm that works with Apple sent a DMCA takedown notice to Twitter, requesting that the tweet be removed. Twitter complied, deleting the tweet.

Today, the tweet reappeared, and Siguza said that the DMCA claim was “retracted.” Apple confirmed to Motherboard that it sent the takedown notice and then asked Twitter to put the tweet back in place.


Reddit also received several DMCA takedown requests for posts shared on r/jailbreak, a subreddit where security researchers and hackers discuss methods for jailbreaking Apple iPhones. It’s not clear if this is also Apple, as the source of the takedown requests was unable to be verified.

Still, security researchers suspect Apple, and according to Motherboard, they see Apple’s actions as an attempt to stifle the jailbreaking community.

For many years, there was no available jailbreaking software for modern iPhones, but that changed earlier this year when Checkra1n, a jailbreak for certain devices running iOS 13, was released. Checkra1n doesn’t work on iPhones released in 2018 and 2019, but it does work on all older ‌iPhone‌ models, which has likely put Apple on edge.

Apple is also in the middle of a lawsuit against Corellium, a mobile device virtualization company that supports iOS. Corellium’s software allows security researchers and hackers to create digital replicas of iOS devices for the purpose of finding and testing vulnerabilities, and the security community has criticized Apple’s decision to levy a lawsuit against Corellium.

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