Jump to content

The Pixel 4's facial recognition will unlock your phone with your eyes closed


Recommended Posts

The Pixel 4's facial recognition will unlock your phone with your eyes closed


Google announced its Pixel 4 series of handsets earlier this week, and one thing that's different this time around is that there's no fingerprint sensor on the back. Instead, they use a new face unlock feature. Unfortunately, it turns out that with face unlock, you don't actually have to be looking at the phone.


On Google's face unlock support page, the company confirmed that your Pixel 4 can be "unlocked by someone else if it’s held up to your face, even if your eyes are closed". The firm also noted that looking at the phone can unlock it when you don't mean to, and it can be unlocked by someone that "looks a lot like you".


The only other mainstream flagship smartphones that have facial recognition and no fingerprint sensor are Apple's lineup of iPhones. And even when Apple's Face ID was first introduced with an iPhone X two years ago, it required not only that your eyes be open, but that you're actually looking at the device.


Sadly, there's no option to require your eyes to be open on the Pixel, although it wouldn't be surprising if Google adds that at some point. If you're worried about someone using your face to unlock your phone while you're sleeping, your only option is to turn off the feature completely.



Source: The Pixel 4's facial recognition will unlock your phone with your eyes closed (Neowin)

  • Like 3
Link to comment
Share on other sites

You might want to get familiar with Android’s lockdown feature





Google came up with its own face unlock system for the Pixel 4 and 4 XL using those advanced sensors in the phone’s top bezel. The technology behind it is similar to Apple’s Face ID, and aside from just letting you into your phone, Google believes face unlock is secure enough to serve as an authentication method across Android. (There’s no more fingerprint sensor on the Pixel 4, remember.) And it’s very fast. But BBC News reporter Chris Fox has noticed an alarming privacy concern with Google’s face unlock: it works even if your eyes are fully closed.


A support page about face unlock directly confirms as much. “Your phone can also be unlocked by someone else if it’s held up to your face, even if your eyes are closed,” the page reads. “Keep your phone in a safe place, like your front pocket or handbag.” You’ll want to follow that advice at night since face unlock would also work if you’re sound asleep.


This is a risk factor that iPhones don’t share. By default, Apple’s Face ID requires attention — meaning your eyes need to be open and actively looking at the iPhone or iPad Pro screen — to successfully unlock a device. This setting, which Apple says is an added security measure, can be disabled in settings if a customer so chooses. But Apple clearly states that “requiring attention makes Face ID more secure.”


For the Pixel 4, there’s no such option — not yet, at least. There’s evidence that Google is working on it. Among the countless Pixel 4 leaks, you might’ve missed a photo of this screen with an option to “require eyes to be open” for face unlock to work.


However, according to Fox, this toggle is not present on the Pixel 4’s software that will ship to consumers next week. When reached by The Verge, Google didn’t say one way or the other whether this added layer of security is definitely coming. “We don’t have anything specific to announce regarding future features or timing, but like most of our products, this feature is designed to get better over time with future software updates,” a spokesperson said by email.


Maybe you’re wondering why this matters. Well, aside from snooping friends or partners, the Pixel 4’s face unlock (in its current state) could make it easier for authorities to unlock a seized device without the owner’s permission. If all it takes is pointing the phone at your face, that’s not great.


But there is one way Pixel 4 buyers can prevent that possibility until Google rolls out a fix.


Google is reminding customers about Android’s lockdown function, which completely disables biometric authentication and will only unlock a phone if and when the PIN is entered. Lockdown can now be added directly to the power menu options on Pixel phones for fast access if you find yourself in a situation where you urgently need to thwart prying eyes — like so:




iOS has a similarly quick trick: you can just hold down the power button and one of the volume buttons until you see the power down menu (or feel a vibration if you’re not looking at the phone), after which Face ID is temporarily disabled until the PIN is entered.


Here’s how to add a shortcut for lockdown to your power options in Android 10, which is what the Pixel 4 ships with:

  • Open settings
  • Choose Display
  • Expand the “Advanced” section at the bottom
  • Tap on “Lock screen display”
  • Enable “Show lockdown option”


Aside from disabling face unlock, lockdown also turns off smart lock (so your trusted Bluetooth devices won’t unlock the phone if they’re still on you) and hides notifications from the lock screen.



  • Like 3
Link to comment
Share on other sites

Similar topics merged.


And, Topic moved from Mobile News, better here.

Link to comment
Share on other sites


Google confirms upcoming fix for Pixel 4 face unlock flaw




Google unveiled the Pixel 4 series last week with a claim for the fastest face unlock system on any phone, courtesy of its Soli radar on the front. The system works by preparing your phone to scan your face before you pick it up. However, it turned out that there was a compromise between speed and robust security in the Pixel 4's face recognition as it was found that it would unlock your phone even with your eyes closed.


Now, Google has confirmed that it will be rolling out an update in the coming months to fix the face unlock system's shortcomings. Once updated, the system will require users to open their eyes before their Pixel 4 phones are unlocked.


The search giant said in a statement (via Android Central) :


"We've been working on an option for users to require their eyes to be open to unlock the phone, which will be delivered in a software update in the coming months. In the meantime, if any Pixel 4 users are concerned that someone may take their phone and try to unlock it while their eyes are closed, they can activate a security feature that requires a pin, pattern or password for the next unlock."


Meanwhile, in its official guidance for the Pixel 4, Google advises users to keep their device in a safe location such as their pocket or handbag in order to prevent unauthorized access. In addition, users can turn on lockdown on their phone to disable notifications, biometric unlocking, and Smart Lock while on the lock screen.


However, keeping lockdown in use requires that you turn it on every time you need to use it by long-pressing the power button and then tapping "Lockdown". Albeit cumbersome, this workaround remains the only viable option for now.


Source: Google confirms upcoming fix for Pixel 4 face unlock flaw (via Neowin)

Edited by zanderthunder
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...