According to a Cult of Mac blog post, a newly discovered vulnerability in Apple's iOS 5 could enable an attacker to access an iPhone's contact list, recent calls, voicemails, text messages and more.

"The post cites a vulnerability discovered by Safwan Saba of iPhoneIslam where the phone’s missed call notification is used to trigger the flaw," writes Threatpost's Christopher Brook.

"After beginning a call and quickly removing the SIM card, the phone can be unlocked while the device searches for a signal," Brook writes.

Go to "iOS 5 Flaw Allows Unfettered Access to User's Contacts, Calls" to read the details.

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