• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Tech

Hackers launched a cyber attack on U.S. Census Bureau in 2020

By
Mike Schneider
Mike Schneider
and
The Associated Press
The Associated Press
Down Arrow Button Icon
By
Mike Schneider
Mike Schneider
and
The Associated Press
The Associated Press
Down Arrow Button Icon
August 18, 2021, 1:18 PM ET

U.S. Census Bureau computer servers uninvolved with the 2020 census were exploited last year during a cybersecurity attack, but hackers’ attempts to keep access to the system were unsuccessful, according to a watchdog report released Wednesday.

The attack took place in January 2020 on the bureau’s remote access servers.

According to the Office of Inspector General, the Census Bureau missed opportunities to limit its vulnerability to the attack and didn’t discover and report the attack in a timely manner. The statistical agency also failed to keep sufficient system logs, which hindered the investigation, and was using operating system no longer supported by the vendor, the watchdog report said.

The bureau’s firewalls stopped the attacker’s attempts to maintain access to the system through a backdoor, but unauthorized changes were still made, including the creation of user accounts, the report said.

In a written response, acting Census Bureau director Ron Jarmin reiterated that none of the systems used for the 2020 census were compromised, nor was the nation’s once-a-decade head count affected in any way.

“Furthermore, no systems or data maintained and managed by the Census Bureau on behalf of the public were compromised, manipulated or lost…” Jarmin wrote.

More tech coverage from Fortune:

  • Apple accepts 15 Black and brown-led businesses for impact accelerator
  • What are stablecoins? Your guide to the fast-rising alternative to Bitcoin and Ethereum
  • Employees may need to keep up “the pretense of working” as automation spreads, says A.I. expert Kai-Fu Lee
  • What will the future of Big Tech regulation look like? Europe offers some clues
  • A road trip on a single charge? Why the long-distance EV remains a pipe dream
Subscribe to Fortune Daily to get essential business stories straight to your inbox each morning.
About the Authors
By Mike Schneider
See full bioRight Arrow Button Icon
By The Associated Press
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • 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
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Tech

dario
LawLegal
Even as hallucinations show up in legal filings, Big Law goes all in on AI with new Anthropic release
By Nick LichtenbergMay 12, 2026
13 minutes ago
person alone in office
EconomyJobs
The China shock hollowed out factory towns. This professor thinks the AI shock is coming for your urban coffee shop
By Jake AngeloMay 12, 2026
27 minutes ago
Man sitting staring at his computer.
NewslettersEye on AI
Chatbots are becoming mental health tools before they are ready
By Beatrice NolanMay 12, 2026
1 hour ago
Ed Bastian with both his hands up
SuccessProductivity
Delta’s CEO let AI write a speech for Gen Z college grads—but he threw it away and started over with pencil and paper for one key reason
By Preston ForeMay 12, 2026
2 hours ago
Daniela Amodei, co-founder and president of Anthropic
SuccessFounders
Anthropic’s Daniela Amodei says entrepreneurs should go on vacation to road test potential cofounders—if they’re a drain, they’re ‘the wrong choice’
By Emma BurleighMay 12, 2026
2 hours ago
AI godfather warns humanity risks extinction by hyperintelligent machines with their own ‘preservation goals’ within 10 years
AITech
AI godfather warns humanity risks extinction by hyperintelligent machines with their own ‘preservation goals’ within 10 years
By Marco Quiroz-GutierrezMay 12, 2026
4 hours ago

Most Popular

Forget U.S. debt, China's total borrowing is in 'a league of its own'—much worse and deteriorating faster, analyst says
Economy
Forget U.S. debt, China's total borrowing is in 'a league of its own'—much worse and deteriorating faster, analyst says
By Jason MaMay 11, 2026
1 day ago
Microsoft’s CFO admits she joined the tech giant without even knowing her salary—and then missed her first day of work
Success
Microsoft’s CFO admits she joined the tech giant without even knowing her salary—and then missed her first day of work
By Preston ForeMay 11, 2026
1 day ago
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
Tech
OpenAI CEO Sam Altman says Gen Z and millennials are using ChatGPT like a 'life advisor'—but college students might be one step ahead
By Sydney LakeMay 10, 2026
2 days ago
Trump Mobile quietly rewrote its fine print to say the gold Trump phone may never be made, a year after taking $100 deposits
North America
Trump Mobile quietly rewrote its fine print to say the gold Trump phone may never be made, a year after taking $100 deposits
By Marco Quiroz-GutierrezMay 11, 2026
19 hours ago
U.S. hotels are calling the World Cup a 'non-event' and 80% warn bookings are falling short of expectations, report finds
North America
U.S. hotels are calling the World Cup a 'non-event' and 80% warn bookings are falling short of expectations, report finds
By Sasha RogelbergMay 12, 2026
9 hours ago
Current price of oil as of May 11, 2026
Personal Finance
Current price of oil as of May 11, 2026
By Joseph HostetlerMay 11, 2026
1 day ago

© 2026 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.