If you have an iPhone 6s or iPhone 6s Plus that’s not properly showing how much battery you have left, there’s good news and bad news. Bad news first? Apple doesn’t exactly know what’s causing the problem. Good news: They’re looking into it, and there’s a temporary fix.

A serious security flaw affecting approximately 1,500 iOS apps makes them vulnerable to hackers looking to swipe passwords, bank account info and other sensitive data, according to a new report.

The bug, which security analytics firm SourceDNA identified last month, has been fixed in an update to the open-source code that contained the vulnerability. However, some app makers have not yet updated to the newer version.

Luckily, you can search to see if your favorite apps are vulnerable.