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

Trendingnow

1

Ex-PepsiCo CEO Indra Nooyi worked from midnight until 5 a.m. as a receptionist to pay for her Yale degree—and she says ‘respect went up’ because of it

2

Shark Tank's Kevin O'Leary says if he were 25 today, he'd chase these two booming opportunities in the world of AI

3

China’s birth rate just hit its lowest point since 1949—and Trip.com cofounder James Liang thinks that’s a threat to innovation

1

Ex-PepsiCo CEO Indra Nooyi worked from midnight until 5 a.m. as a receptionist to pay for her Yale degree—and she says ‘respect went up’ because of it

2

Shark Tank's Kevin O'Leary says if he were 25 today, he'd chase these two booming opportunities in the world of AI

3

China’s birth rate just hit its lowest point since 1949—and Trip.com cofounder James Liang thinks that’s a threat to innovation
U.S. military

Chinese Hackers Steal Sensitive Data on U.S. Subs and Missiles from Military Contractor, Report Says

By
David Z. Morris
David Z. Morris
Down Arrow Button Icon
By
David Z. Morris
David Z. Morris
Down Arrow Button Icon
June 10, 2018, 1:31 PM ET
Guided Missile Submarine Shown To Media
AT SEA - JANUARY 29: In this handout provided by the U.S. Navy, the guided missile submarine USS Ohio (SSGN 726) stops for a personnel boat transfer January 29, 2006 off the coast of Puget Sound, Washington. Media were transported to Ohio to see the new capabilities that the submarine now brings to the joint warfighter. Ohio is the first ballistic missile submarine to complete conversion to the new class of guided missile submarines (SSGN). Three other submarines are undergoing the SSGN conversion process including USS Michigan (SSGN 727), Florida (SSGN 727) and Georgia (SSGN 729). (Photo by Dave Fliesen/U.S. Navy via Getty Images)Dave Fliesen/U.S. Navy via Getty Images
Add Fortune on Google for similar content.

Chinese government hackers have compromised an unnamed contractor for the Naval Undersea Warfare Center, a submarine research branch of the military, according to a new report. Six hundred fourteen gigabytes of data were stolen, including submarine communications data and information on a secretive project known as Sea Dragon. The attack has been attributed to China’s Ministry of State Security, or MSS.

The Washington Post, citing anonymous American officials, reports that the data was stored on the contractor’s unclassified network, though officials said the material could be considered classified and was highly sensitive. The compromised data could give China important edges in both technology and tactics at sea, including in its conflict with a half-dozen nations including Japan and Indonesia over territorial claims in the South China Sea.

Little is known about the classified Sea Dragon initiative, but it is an underwater technology that the Defense Department has described as introducing a “disruptive offensive capability,” according to the Post, and which some defense experts regard as a key component in America’s precautions for conflict with China. Submarine weapons are key for China’s military ambitions, but Chinese cyber-incursions in recent years have nabbed designs and data for everything from advanced fighter jets to missile systems.

Get Data Sheet, Fortune’s technology newsletter.

In addition to headline technologies, the hack of defense databases could give China insight into U.S. capabilities, such as sensor distance; and into how much the U.S. knows about Chinese weapons. Retired admiral James Stavridis told the Post that the spread of such data “deeply reduces our level of comfort if we were in a close undersea combat situation with China.”

As serious as it is, the loss of weapons and intelligence data may not be the worst part of the hack. Former Navy officer and NSA analyst John Schindler, writing for the Observer, highlights the loss of cryptographic information used in submarine communications. Those techniques allow coordination of forces at sea, and their compromise can lend an enemy a huge tactical advantage in any conflict. As a precedent, Schindler cites the Allied compromise of the German Enigma cipher, and the resulting demolition of Nazi U-Boats that hastened the end of World War II—though it’s important to note that the Germans didn’t know the code had been cracked, and the U.S. may be able to react to the recent hack by changing codes and practices to keep messages out of Chinese hands.

About the Author
By David Z. Morris
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in International

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

Most Popular

Ex-PepsiCo CEO Indra Nooyi worked from midnight until 5 a.m. as a receptionist to pay for her Yale degree—and she says ‘respect went up’ because of it
Success
Ex-PepsiCo CEO Indra Nooyi worked from midnight until 5 a.m. as a receptionist to pay for her Yale degree—and she says ‘respect went up’ because of it
By Preston ForeJuly 6, 2026
1 day ago
Shark Tank's Kevin O'Leary says if he were 25 today, he'd chase these two booming opportunities in the world of AI
AI
Shark Tank's Kevin O'Leary says if he were 25 today, he'd chase these two booming opportunities in the world of AI
By Marco Quiroz-GutierrezJuly 5, 2026
3 days ago
China’s birth rate just hit its lowest point since 1949—and Trip.com cofounder James Liang thinks that’s a threat to innovation
Asia
China’s birth rate just hit its lowest point since 1949—and Trip.com cofounder James Liang thinks that’s a threat to innovation
By Nicholas GordonJuly 7, 2026
20 hours ago
Current price of oil as of July 6, 2026
Personal Finance
Current price of oil as of July 6, 2026
By Joseph HostetlerJuly 6, 2026
2 days ago
Even as Elon Musk calls philanthropy ‘very hard,’ everyday Americans gave a record $617 billion—despite feeling the squeeze over the cost of living
Success
Even as Elon Musk calls philanthropy ‘very hard,’ everyday Americans gave a record $617 billion—despite feeling the squeeze over the cost of living
By Preston ForeJuly 4, 2026
4 days ago
The man who ran Bernie's campaign says Democrats are still making the same mistakes with Democratic Socialists, and they should laud Mamdani's win
Politics
The man who ran Bernie's campaign says Democrats are still making the same mistakes with Democratic Socialists, and they should laud Mamdani's win
By Catherina GioinoJuly 6, 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.