Apple on Wednesday updated
mobile operating system, which covers the iPhone, iPad and iPod Touch, to rectify more than 80 vulnerabilities. Among the most interesting is a flaw in Siri, a voice-controlled personal assistant application that can be used even if it the phone is locked. The now-patched design issue could allow someone, through a voice command, to force the phone to send an email if the mail app was open behind the lock screen and a message was selected. But the majority of the bugs fixed in the update reside in WebKit, the platform's web browser engine, and could be exploited to execute malicious code.