Apple Releases iOS 11.3, macOS 10.13.4 Updates to Improve Security

Among the patches in the Apple operating system updates is one for a vulnerability that could enable unauthorized applications to log user keystrokes. Apple released a set of security and features updates for its mobile iOS and desktop macOS operating systems on March 29, as well as introduced a new privacy notification icon. iOS 11.3  and macOS 10.13.4 follow Apple's iOS 11.2.6 and  macOS High Sierra 10.13.3 supplemental updates that were released on Feb. 20 primarily to deal with a bug that was triggering Apple devices to crash when certain Indian language characters were received in a message. In the most recent iOS update, Apple patched a new bug, identified as CVE-2018-4140, which similarly could have triggered iOS devices to restart after receiving a malicious SMS text message.