Apple disabled the Walkie-Talkie feature of its Apple Watch after discovering it could be used to eavesdrop on iPhone owners.
In a statement, Apple said it wasnâ€™t aware of anyone exploiting the security flaw against an iPhone owner, but disabled the feature as a precaution because it â€œallow[ed] someone to listen through another customerâ€™s iPhone without consent.â€
It is unclear exactly what the bug was, with Apple disclosing only that â€œspecific conditions and sequences of events are required to exploit it.â€
Although the app will still appear on Apple Watch devices, it will not be functional until the vulnerability is patched over.
Apple introduced Walkie-Talkie in September, pitching it as a â€œfun and easy way to quickly get in touch with friends and family.â€
Users are able to send each other short, recorded snippets of audio with the push of a button.
This is the second time this year that the Cupertino, Calif., tech giant has had to fix a privacy-related bug.
In January, Apple disabled its FaceÂTime group video-calling app because of a security flaw â€” pointed out to the company by a 14-year-old customer â€” that allowed callers to activate other usersâ€™ microphones remotely.
Apple shares ended Thursdayâ€™s trading down by $1.48, to $201.75.