Apple has failed to install a Rapid Security Response patch on all targeted iPhones, leaving users exposed to recently tracked security flaws.

Apple has failed to  install  a Rapid Security Response patch on all targeted iPhones, leaving users exposed to recently tracked security flaws.  The patch was released for iOS 16.4.1 and macOS 13.3.1 Rapid Security Response patches are security patches that are used to mitigate urgent security issues between OS updates. If the users decline to install Rapid Security Responses when offered, their device will receive the security patches as part of a future software upgrade. According to user  reports , the RSR update delivered today for iPhones also fails to install on some devices with "Unable to Verify Security Response" errors. Apple has not specified what exact flaw the RSR patches address.