New iPhone Passcode Security Flaw Discovered in iOS 6.1.3 - MacRumors
Skip to Content

New iPhone Passcode Security Flaw Discovered in iOS 6.1.3

by

voicecontrolFollowing yesterday's release of iOS 6.1.3, which fixed two bugs allowing the iPhone's passcode lock to be bypassed, another passcode security flaw has been discovered.

The vulnerability, which only affects the iPhone 4, involves the Voice Dial command, as demonstrated in the video below from YouTube user videosdebarraquito.

iPhoneinCanada tested the method in the video using an iPhone 4 running iOS 6.1.3 and found that the security flaw does indeed exist, giving a potential intruder access to both contacts and photos.

Like the previous passcode vulnerability, the current hack involves a complicated set of steps that includes initiating Voice Dial command and quickly ejecting the phone's SIM card.


When the SIM card is removed, the phone opens the recent call log, which gives access to the contact list. In the contact list, adding a photo also gives access to all of the pictures on the device.

The previous passcode vulnerability was discovered in mid-February, and it took Apple more than a month to push a fix. An update for the current bypass could follow a similar timeline, but the vulnerability can be fixed by disabling Voice Dial from the Passcode Lock menu.

At this time, the vulnerability has only been shown to work with the iPhone 4. We were unable to reproduce the results with an iPhone 5 with Siri disabled, though the bug may potentially affect the pre-Siri iPhone 3GS as well.

Update 1:07 PM: iPhoneBlog.de reports that it has reproduced the issue on an iPhone 5 with Siri disabled, although we have still been unable to do so.

Top Rated Comments

170 months ago
Wow, who figures this stuff out?

What's next? Stand on your head, rub your stomach while ejecting the SIM 3 times with 1.5 second pauses in between each one.

:rolleyes:
Score: 28 Votes (Like | Disagree)
170 months ago
Up down up down left right left right B A start ...
Score: 12 Votes (Like | Disagree)
tevion5 Avatar
170 months ago
Does anyone even use the iPhone 4 anymore?

Millions
Score: 11 Votes (Like | Disagree)
170 months ago
Does anyone even use the iPhone 4 anymore?

Iphones don't suddenly expire when a new comes out you know...My wife has a 4 and it works perfectly, she has absolutely no desire or need whatsoever to upgrade..for what!
Score: 9 Votes (Like | Disagree)
Idgit Avatar
170 months ago
Not sure if you're joking or not. In Canada, we have 3-year contracts so many of us are still using the iPhone 4. My contract doesn't expire until this August.

Does anyone even use the iPhone 4 anymore?
Score: 9 Votes (Like | Disagree)
TheRainKing Avatar
170 months ago
Does anyone even use the iPhone 4 anymore?
I still use a 3GS. :mad:
Score: 8 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...