Chinese cyber researcher cancels public talk after claiming he could crack Apple’s Face ID
- China-based researcher Wish Wu was scheduled to present talk entitled ‘Bypass Strong Face ID: Everyone Can Deceive Depth and IR Camera and Algorithms’
- Researcher’s employer called the work ‘misleading’
- Wu admitted he was only able to reproduce hacks on iPhone X under certain conditions, and that it did not work with iPhone XS and XS Max
A cyber security researcher canceled a hacking conference briefing on how he said he could crack biometric facial recognition on Apple Inc iPhones, at the request of his employer, which called the work ‘misleading.’
The prospect that Face ID could be defeated is troubling because it is used to lock down functions on tens of millions of iPhones from banking and healthcare apps to emails, text messages and photos.
There is a one in 1 million chance a random person could unlock a Face ID, versus one in 50,000 chance that would happen with the iPhone’s fingerprint sensor, according to Apple.
Scroll down for video
Phil Schiller, Apple’s senior vice president of worldwide marketing, announces features of the new iPhone X, including Face ID, at the Steve Jobs Theater on the new Apple campus. Now a cyber security researcher canceled a hacking conference briefing on how he said he could crack biometric facial recognition on Apple Inc iPhones, at the request of his employer, which called the work ‘misleading.’
Face ID has proven more secure than its predecessor, Touch ID, which uses fingerprint sensors to unlock iPhones. Touch ID was defeated within a few days of its 2013 launch.
China-based researcher Wish Wu was scheduled to present a talk entitled ‘Bypass Strong Face ID: Everyone Can Deceive Depth and IR Camera and Algorithms’ at the Black Hat Asia hacking conference in Singapore in March.
Wu told Reuters that his employer, Ant Financial, asked him to withdraw the talk from Black Hat, one of the largest and most prestigious organizers of hacking conferences.
Ant Financial’s Alipay payment system is compatible with facial recognition technologies including Face ID.
Nobody has publicly released details on a successful Face ID hack that others have been able to replicate since Apple introduced the feature in 2017 with the iPhone X, according to biometric security experts.
The company has introduced three other Face ID phones: iPhone XS, XS Max and XR.
Wu told Reuters that he agreed with the decision to withdraw his talk, saying he was only able to reproduce hacks on iPhone X under certain conditions, but that it did not work with iPhone XS and XS Max.
‘In order to ensure the credibility and maturity of the research results, we decided to cancel the speech,’ he told Reuters in a message on Twitter.
An Apple spokesman declined comment.
‘The research on the face ID verification mechanism is incomplete and would be misleading if presented,’ Ant Financial said in a statement.
Black Hat withdrew an abstract of the talk from its website in late December after Ant uncovered problems with the research.
The abstract claimed that Face ID could be hacked with an image printed on an ordinary black-and-white printer and some tape. The only other claim of a Face ID hack was in 2017 by a Vietnamese cybersecurity company Bkav, which posted it on YouTube videos. Other researchers have not been able to replicate that attack.
HOW APPLE’S FACE ID WORKS
Face ID uses a TrueDepth front-facing camera on the iPhone X, which has multiple components.
A Dot Projector projects more than 30,000 invisible dots onto your face to map its structure.
The dot map is then read by an infrared camera and the structure of your face is relayed to the A11 Bionic chip in the iPhone X, where it is turned into a mathematical model.
The A11 chip then compares your facial structure to the facial scan stored in the iPhone X during the setup process.
Face ID uses infrared to scan your face, so it works in low lighting conditions and in the dark.
It will only unlock your device when you look in the direction of the iPhone X with your eyes open.
Phil Schiller, senior vice president of worldwide marketing at Apple, speaks about the Face ID feature to unlock the iPhone X during the company’s event at the new Steve Jobs Theater in Cupertino
Face ID captures both a 3-D and 2-D image of your face using infrared light while you’re looking straight at the camera.
Five unsuccessful attempts at Face ID will force you to enter a passcode – which you’ll need anyway just to set up facial recognition.
That requires you to come up with a secure string of digits – or, for extra security, a string of letters and numbers – to protect your privacy.
Face ID also adapts to changes in your appearance over time, so it will continue to recognize you as you grow a beard or grow your hair longer.
Apple’s facial recognition uses a combination of cameras and special sensors to capture a three-dimensional scan of a face that allows it to identify spoofs with photographs or determine if the user is asleep or otherwise not looking at the phone.
It is rare for talks to be pulled from cybersecurity conferences such as Black Hat, whose events are attended by professionals looking to understand emerging hacking threats.
Black Hat told Reuters it had accepted Wu’s talk because Wu convinced its review board he could pull off the hack.
‘Black Hat accepted the talk after believing the hack could be replicated based on the materials provided by the researcher,’ conference spokeswoman Kimberly Samra said.
Anil Jain, a Michigan State University computer science professor who is an expert on facial recognition, said he was surprised by Wu’s claim because Apple has invested heavily in ‘anti-spoofing’ technology that makes such hacks very difficult.