A passcode bypass vulnerability has been discovered in iOS 12 that potentially allows an attacker to access photos and contact details on a locked iPhone.

The rather convoluted bypass method was shared in a video by Jose Rodriguez, who has discovered iOS bugs in the past that Apple has subsequently fixed.

iphone bypass lock screen
With physical access to the locked device, the attacker first asks Siri to activate VoiceOver, sleeps the device with the Side button, and then calls the iPhone using another device. Once the call screen shows up, the attacker taps the Message button, opts to create a custom message, and then taps the plus (+) icon in the top right.

Next, on the other phone, the attacker sends a text or iMessage to the target iPhone, whose screen is then double-tapped when the message notification appears. This causes an odd behavior in the UI, since it highlights the plus icon underneath.

After a short wait, the screen goes white and the notification disappears, but the VoiceOver's text selection box is apparently still tappable and can now be used to access the Messages interface. Following multiple screen swipes, the VoiceOver is heard to say "Cancel," which reveals the original Messages screen.


Adding a new recipient to the message and selecting a numeral from the virtual keyboard then reveals a list of recently dialed or received phone numbers and contacts. Further, if one of the numbers or contacts includes an info ("i") button, disabling VoiceOver and tapping the button shows the contact's information. Performing a 3D Touch action on the contact also brings up call and message options, along with options to Add to Existing Contact or Create New Contact.

In a similarly complicated set of steps involving an invisible user menu, an attacker can eventually access a locked iPhone's Camera Roll and other photo folders, which can then be used to add profile pictures to contact cards.

The bypass methods work on all iPhones including the iPhone XS lineup, but Apple doesn't appear to have fixed the vulnerabilities in the latest iOS 12.1 beta. Thankfully however, all of the above can be easily prevented by disabling access to Siri from the lock screen.

Concerned users can do so by navigating to Settings > Face ID & Passcode (that's Settings > Touch ID & Passcode on iPhones with Touch ID) and disabling the Siri toggle under the "Allow access when locked" menu.

Top Rated Comments

SBlue1 Avatar
86 months ago
How do they find out something like this?? :)
Score: 40 Votes (Like | Disagree)
MrGimper Avatar
86 months ago
Youtuber EverythingApplePro reported that it was found by a taxi driver who tries to discover bugs like this on his iPhone while waiting for passengers.
He's also famous for being the taxi driver who has one customer every 10 years.
Score: 24 Votes (Like | Disagree)
Scottsoapbox Avatar
86 months ago
Hats off to hackers and security people that have much more patient for minutiae than me.
Score: 13 Votes (Like | Disagree)
davidg4781 Avatar
86 months ago
Why in the world do people have Siri enabled on the lock screen in the first place? The only thing worse would be the truly clueless who enable control center on the lock screen.
So when I’m cooking, I can just yell “Hey Siri, set a timer for 2 and one-half minutes!” and not be bothered by picking it up.

Or when I’m driving, just say “Hey Siri, tell dad I’ll be there in five minutes.” Since Apple doesn’t feel it can leave iPhone on while plugged in listening to music.

Now, serious question, what’s wrong with Control Center being enabled on lock screen?
Score: 12 Votes (Like | Disagree)
BaccaBossMC Avatar
86 months ago
How do they find out something like this?? :)
Surely this must have been discovered in some reverse-engineering of iOS. How else would you ever find this.
Youtuber EverythingApplePro reported that it was found by a taxi driver who tries to discover bugs like this on his iPhone while waiting for passengers.
Score: 12 Votes (Like | Disagree)
KrispE00 Avatar
86 months ago
Up, up, down, down, left, right, A, B, A makes the headphone jack reappear.
Score: 9 Votes (Like | Disagree)

Popular Stories

iOS 18

Apple Releases iOS 18.5 With New Wallpaper, Screen Time Changes, Carrier Satellite Support for iPhone 13 and More

Monday May 12, 2025 10:06 am PDT by
Apple today released iOS 18.5 and iPadOS 18.5, the fifth updates to the iOS 18 and iPadOS 18 operating systems that came out last September. iOS 18.5 and iPadOS 18.5 come a little over a month after Apple released iOS 18.4 and iPadOS 18.4. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. The iOS 18.5 update has a...
tvOS 18 Feature

Apple Releases tvOS 18.5

Monday May 12, 2025 10:01 am PDT by
Apple today released tvOS 18.5, the latest version of the tvOS operating system. tvOS 18.5 comes a little over a month after the launch of tvOS 18.4, and it is available for the Apple TV 4K and Apple TV HD models. tvOS 18.5 can be downloaded using the Settings app on the ‌Apple TV‌. Open up Settings and go to System > Software Update to get the new software. ‌Apple TV‌ owners who have...
iPhone 17 Pro Blue Feature Tighter Crop

WSJ: Apple Weighing Price Hikes for iPhone 17 Lineup Without Blaming Tariffs

Monday May 12, 2025 3:36 am PDT by
Apple is considering raising prices for its upcoming iPhone 17 models set to release this fall, according to people familiar with the matter cited by The Wall Street Journal. The company reportedly aims to pair the potential price hikes with new features and design changes to justify the increased cost to consumers, rather than attributing them to U.S. tariffs on goods from China. The...
iOS 18

iOS 18.5 Expected This Week With These New Features

Monday May 12, 2025 7:20 am PDT by
Following more than a month of beta testing, Apple is expected to release iOS 18.5 to the general public this week. While the software update is relatively minor, it still includes a handful of new features and changes for iPhones. Below, we recap everything new in iOS 18.5. Pride Wallpaper Apple recently announced its 2025 Pride Collection, including a new Apple Watch band, watch face,...
macOS Sequoia Feature

Apple Releases macOS Sequoia 15.5

Monday May 12, 2025 10:10 am PDT by
Apple today released macOS Sequoia 15.5, the fifth major update to the macOS Sequoia operating system that launched last September. macOS Sequoia 15.5 comes a little over a month after the launch of macOS Sequoia 15.4. Mac users can download the ‌‌‌macOS Sequoia 15.5‌‌‌ update through the Software Update section of System Settings. It is available for free on all Macs able to run ...
Mayday Calendar

Apple Acquisition Hints at Upgraded Calendar App on iOS 19 or Beyond

Friday May 9, 2025 9:13 am PDT by
Apple acquired Canadian startup Mayday Labs in April 2024, according to a European Commission listing, spotted by French blog MacGeneration. The acquisition had not received widespread attention from tech publications until now. Apple is legally required to report certain acquisitions to the European Commission, under the terms of the EU's Digital Markets Act. Mayday Labs founder Jeremy...
Beyond iPhone 13 Better Triad

20th Anniversary iPhone Will Be Mostly Glass With All-Screen Design

Monday May 12, 2025 2:52 am PDT by
Apple will mark the 10th anniversary of the iPhone X in 2027 by launching a mostly glass, curved iPhone without any cutouts in the display, according to Bloomberg's Mark Gurman. Writing in his latest Power On newsletter, Gurman said the all-screen device will arrive later in 2027, suggesting a fall release. The model will be preceded by Apple's first foldable iPhone, claims the reporter....