Apple’s attempt to prevent hackers( and law enforcement) from cracking your iPhone may have a glaring mistake. Security researchers at ElcomSoft claim to have found a loophole in the new USB Restricted Mode, which reeled out Monday as part of iOS 11.4.1.

USB Restricted Mode is designed to impede iPhone-cracking tools that work by connecting to the device’s Lightning port. It controls like this: if an iPhone or iPad is not unlocked after 1 hour, data access through the Lightning port will shut down.

Unfortunately, USB Restricted Mode doesn’t appear to be perfect; a $39 USB adapter is likely to be defeat it, according to the report of ElcomSoft investigate Oleg Afonin.

“What we detected is that iOS will reset the USB Restrictive Mode countdown timer even though it is one connects the iPhone to an untrusted USB accessory, one that has never been paired to the iPhone before, ” Afonin wrote in a Monday blog post.

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