Researchers from Ledger's Donjon team have uncovered a critical security vulnerability affecting MediaTek-powered Android devices. This flaw allows attackers to access sensitive information, including cryptocurrency wallet data, in under a minute via a USB connection, even when devices are powered off. Specifically tested on the CMF Phone 1 using a MediaTek Dimensity 7300 chipset, the vulnerability could impact millions of users worldwide. MediaTek states the issue has been patched, urging all affected users to update their devices promptly.