The iPhone 7 hit the market just a week ago, but hackers have already started work on attempting to jailbreak the device. As noted by Motherboard, one teenage hacker has already had success in jailbreaking the iPhone 7 running iOS 10. In fact, the 19-year-old developer, Luca Todesco, claims to have successfully done so in just 24 hours…

Speaking to Motherboard, Todesco explained that Apple definitely made the process harder with the iPhone 7, but noted that it’s not 100 percent secure yet. Todesco announced the jailbreak on his Twitter, simply saying “this is a jailbroken iPhone 7” and including a screenshot of terminal where he has root access.  He also shared the below video to further prove the legitimacy of his claim, as well as a shot of the jailbreak app store Cydia running.

Todesco doesn’t plan to release his jailbreak to the public until Apple patches it, though. He says that in the meantime, he will work to make the process simpler and cleaner.

The concept of jailbreaking has somewhat waned in popularity over recent years, but it’s still a thriving community of developers. Earlier this year, developers successfully jailbroke iOS 9.3.3, but the vulnerability was patched relatively quickly by Apple and the company subsequently stopped signing that version of iOS.

“Being able to have access to the hardest target among mobile targets is very useful,” he said, explaining that having a jailbroken phone is useful to do live debugging and find even more bugs.

With Apple already beta testing iOS 10.1, it’s likely that the update will path the vulnerability used by Todesco, though Todesco hasn’t decided if he will submit the vulnerability to Apple’s bounty program.

View the video of Todesco’s jailbroken iPhone 7 below.

obligatory cydia screenshot pic.twitter.com/peSF0kVNBh

— qwertyoruiop (@qwertyoruiopz) September 21, 2016

This is a jailbroken iPhone 7. pic.twitter.com/wa4ZyEpK8o