Hacker Claims New 'checkm8' Exploit Can Lead to Permanent Jailbreak

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Twitter use axi0mX posted about how a new iOS exploit called checkm8 could lead to a “permanent unpatchable bootrom exploit” for iPhone 4s to iPhone X.

What I am releasing today is not a full jailbreak with Cydia, just an exploit. Researchers and developers can use it to dump SecureROM, decrypt keybags with AES engine, and demote the device to enable JTAG. You still need additional hardware and software to use JTAG.

I’m sure governments around the world will be in touch.