Well, here's one reason not to be an early adopter.
YouTube user EverythingApplePro on Sunday published a video detailing an easy way to gain access to the photos and contact information saved on an iPhone or iPad if the device is running iOS 9. (An earlier, less detailed video also showcased the security flaw.)
Long story short, an individual is able to use Siri to bypass an iOS device's lockscreen and access the images and contacts stored within. The hack only grants limited access, so an individual wouldn't be able to see your email, for example, but it goes without saying that you don't want just anyone digging through your saved photos and phone numbers.
Don't freak out: The exploit can't target devices remotely -- your phone or tablet would have to actually be in someone's hands for them to access your information. They'd also have to know the complicated series of steps required to make the hack work.
Apple did not immediately respond to a request for comment from The Huffington Post about when users could expect the security hole to be patched.
For now, the best thing you can do to stay totally safe is to simply disable Siri on your lockscreen, since the digital assistant is key to making the hack work. CNET reports that you can also stay safe by enabling a custom alphanumeric password -- four-digit and six-digit passcodes are vulnerable. To change these options, open your Settings app and select "Touch ID & Passcode."
While Apple reportedly didn't fix the bug in Wednesday's release of iOS 9.0.1, you can probably expect the company to take action soon -- so, keep updating if you're already on iOS 9.
If you haven't made the jump to iOS 9, you'll probably want to wait until this is all sorted out. Just in case.