• Home
  • News
  • Fortune 500
  • Tech
  • Finance
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
TechGoogle

Flaw in Google’s New Pixel 4 Raises Risk of Snooping While You Sleep

By
Alyssa Newcomb
Alyssa Newcomb
Down Arrow Button Icon
By
Alyssa Newcomb
Alyssa Newcomb
Down Arrow Button Icon
October 21, 2019, 2:22 PM ET

Google is working to fix a security flaw in its new Pixel 4 smartphones after a journalist discovered that the phones’ facial recognition system, used for unlocking the device, works even when its owners’ eyes are closed.

The problem has raised concerns that people’s phone could be opened while they sleep, allowing anyone to snoop on their private messages and call history, and to gain access to private information, such as bank accounts and medical data through apps.

The Pixel 4 and Pixel 4 XL will ship on October 24 without the problem being fixed. A Google spokesperson tells Fortune that the company will update the phone’s software “in the coming months.”

The problem was first reported by the BBC, which received a device to review ahead of the phone’s release date.

People who are concerned about having their smartphone unlocked by someone else while they sleep can turn off facial recognition and require a pin to gain access. This can be done by adjusting the settings for “advanced and lock screen display”. If users do not see display, they should tap “security and location” and then “lock screen preferences,” according to Google.

Despite the issue, Google says its face unlock system “meets the security requirements as a strong biometric.” The company says it has also passed tests against other invalid login attempts, such as someone using a mask, to gain entry into the smartphone.

This is the second new phone in as many weeks that has a problem with biometric logins. Last week, Samsung acknowledged that its new Galaxy S10 and S10+ smartphones can be unlocked using anyone’s fingerprint, if the phone has a screen protector over the display.

In that case, Samsung advises GalaxyS10 and S10+ owners who use screen protectors to turn off fingerprint ID and instead unlock their phones using facial recognition or a passcode until the company releases a software update.

More must-read stories from Fortune:

—The wireless industry needs more airwaves, but it’s going to be costly
—Meet the executive leading Facebook’s big augmented and virtual reality push

—How to claim a cash settlement of up to $358 for Yahoo’s data breaches
—Now hiring: people who can translate data into stories and actions
—Is A.I. a trillion-dollar growth engine or a jobs-killer? There’s reason for optimism
Catch up withData Sheet, Fortune’s daily digest on the business of tech.

About the Author
By Alyssa Newcomb
See full bioRight Arrow Button Icon

Latest in Tech

Rakesh Kumar
CommentarySemiconductors
China does not need Nvidia chips in the AI war — export controls only pushed it to build its own AI machine
By Ramesh KumarDecember 3, 2025
4 minutes ago
Rochelle Witharana is Chief Financial and Investment Officer for The California Wellness Foundation
Commentarydiversity and inclusion
Fund managers from diverse backgrounds are delivering standout returns and the smart money is slowly starting to pay attention
By Rochelle WitharanaDecember 3, 2025
4 minutes ago
CryptoCryptocurrency
Exclusive: Harvard grads raise $20 million for Ostium, a platform focused on a derivative popular with crypto traders
By Ben WeissDecember 3, 2025
34 minutes ago
MagazineMedia
CoComelon started as a YouTube show for toddlers. It’s now a $3 billion empire that even Disney can’t ignore
By Natalie JarveyDecember 3, 2025
1 hour ago
SAN FRANCISCO, CALIFORNIA - SEPTEMBER 04: Anthropic Co-founder and CEO Dario Amodei speaks at the "How AI Will Transform Business in the Next 18 Months" panel during INBOUND 2025 Powered by HubSpot at Moscone Center on September 04, 2025 in San Francisco, California. (Photo by Chance Yeh/Getty Images for HubSpot)
InvestingAnthropic
Anthropic considers IPO despite warnings that excess liquidity is blowing a bubble in the markets
By Jim EdwardsDecember 3, 2025
2 hours ago
NewslettersTerm Sheet
Exclusive: Angle Health raises $134 million Series B to grow its AI-driven healthcare benefits offerings
By Allie GarfinkleDecember 3, 2025
2 hours ago

Most Popular

placeholder alt text
Economy
Ford workers told their CEO 'none of the young people want to work here.' So Jim Farley took a page out of the founder's playbook
By Sasha RogelbergNovember 28, 2025
5 days ago
placeholder alt text
Success
Warren Buffett used to give his family $10,000 each at Christmas—but when he saw how fast they were spending it, he started buying them shares instead
By Eleanor PringleDecember 2, 2025
1 day ago
placeholder alt text
North America
Jeff Bezos and Lauren Sánchez Bezos commit $102.5 million to organizations combating homelessness across the U.S.: ‘This is just the beginning’
By Sydney LakeDecember 2, 2025
23 hours ago
placeholder alt text
Economy
Elon Musk says he warned Trump against tariffs, which U.S. manufacturers blame for a turn to more offshoring and diminishing American factory jobs
By Sasha RogelbergDecember 2, 2025
21 hours ago
placeholder alt text
C-Suite
MacKenzie Scott's $19 billion donations have turned philanthropy on its head—why her style of giving actually works
By Sydney LakeDecember 2, 2025
1 day ago
placeholder alt text
North America
Anonymous $50 million donation helps cover the next 50 years of tuition for medical lab science students at University of Washington
By The Associated PressDecember 2, 2025
1 day ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.