Apple is  iPhone and iPad users to promptly update their operating systems to fix security bugs that may have already been exploited by hackers.

On the company’s website Apple noted three security bugs that  “may have been actively exploited.” The company did not disclose many specifics about the operating system flaws, noting “Apple does not disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available.”

What is comes down to is that the issue is a link in an export chain, meaning a potential hacker would need to export further bugs for it to be entirely executable. Apple has declined to elaborate further on the attacks.

Security patch updates were pushed out to users on Tuesday as part of the new iOS 14.4 software update. Some other fixes included resolutions for keyboard lag times and QR reader updates.

Apple takes pride in their security precautions but they are not immune to exploits. Early last year, Google investigators found several code issues across websites that allowed hackers the ability to quietly penetrate iPhone software.