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

Major Spammer Accidentally Leaks Data on a Billion People

By
Jonathan Vanian
Jonathan Vanian
Down Arrow Button Icon
By
Jonathan Vanian
Jonathan Vanian
Down Arrow Button Icon
March 6, 2017, 4:44 PM ET
Symbol E-Mail Spam
Getty Images

It’s bad enough we have to worry about spam emails promising discount medications and other shady deals. Now we have to be concerned that the spammers don’t accidentally leak user data they probably dubiously obtained.

A huge email marketing organization called River City Media failed to safeguard backups of its database of 1.34 billion email accounts, resulting in all that user information being available for anyone to see.

Chris Vickery, a MacKeeper security researcher, wrote Monday that he discovered the unsecured user data in January and worked with security organization Spamhaus and cybersecurity news site CSO Online to further investigate the data breach.

Get Data Sheet, Fortune’s technology newsletter.

Vickery said he traced the “leaky files” to the spamming operation, which he said “masquerades as a legitimate marketing firm while, per their own documentation, being responsible for up to a billion daily email sends.”

He wrote that the River City Media was able to obtain “email accounts, full names, IP addresses, and often physical address” from over a billion people through its spam operation that involves emails promising “credit checks, education opportunities, and sweepstakes.”

The database of user information is so big, Vickery wrote, “chances are that you, or at least someone you know, is affected.”

CSO Online, which helped Vickery in his investigation, has a detailed account on the spam operations of River City Media and how it accidentally leaked its database. The gist of the data breach is that River City Media workers failed to properly configure its backup system, which led to Vickery discovering the user data.

For more about cybersecurity, watch:

The publication said that the researchers reported the data breach and spammers to law enforcement, but that the researchers “cannot discuss those elements, because the agencies involved cannot comment on pending or ongoing investigations.”

About the Author
By Jonathan Vanian
LinkedIn iconTwitter icon

Jonathan Vanian is a former Fortune reporter. He covered business technology, cybersecurity, artificial intelligence, data privacy, and other topics.

See full bioRight Arrow Button Icon

Latest in Tech

Sarandos
Arts & EntertainmentM&A
It’s a sequel, it’s a remake, it’s a reboot: Lawyers grow wistful for old corporate rumbles as Paramount, Netflix fight for Warner
By Nick LichtenbergDecember 13, 2025
3 hours ago
Oracle chairman of the board and chief technology officer Larry Ellison delivers a keynote address during the 2019 Oracle OpenWorld on September 16, 2019 in San Francisco, California.
AIOracle
Oracle’s collapsing stock shows the AI boom is running into two hard limits: physics and debt markets
By Eva RoytburgDecember 13, 2025
4 hours ago
robots
InnovationRobots
‘The question is really just how long it will take’: Over 2,000 gather at Humanoids Summit to meet the robots who may take their jobs someday
By Matt O'Brien and The Associated PressDecember 12, 2025
17 hours ago
Man about to go into police vehicle
CryptoCryptocurrency
Judge tells notorious crypto scammer ‘you have been bitten by the crypto bug’ in handing down 15 year sentence 
By Carlos GarciaDecember 12, 2025
18 hours ago
three men in suits, one gesturing
AIBrainstorm AI
The fastest athletes in the world can botch a baton pass if trust isn’t there—and the same is true of AI, Blackbaud exec says
By Amanda GerutDecember 12, 2025
19 hours ago
Brainstorm AI panel
AIBrainstorm AI
Creative workers won’t be replaced by AI—but their roles will change to become ‘directors’ managing AI agents, executives say
By Beatrice NolanDecember 12, 2025
19 hours ago

Most Popular

placeholder alt text
Economy
Tariffs are taxes and they were used to finance the federal government until the 1913 income tax. A top economist breaks it down
By Kent JonesDecember 12, 2025
1 day ago
placeholder alt text
Success
Apple cofounder Ronald Wayne sold his 10% stake for $800 in 1976—today it’d be worth up to $400 billion
By Preston ForeDecember 12, 2025
23 hours ago
placeholder alt text
Success
40% of Stanford undergrads receive disability accommodations—but it’s become a college-wide phenomenon as Gen Z try to succeed in the current climate
By Preston ForeDecember 12, 2025
22 hours ago
placeholder alt text
Economy
For the first time since Trump’s tariff rollout, import tax revenue has fallen, threatening his lofty plans to slash the $38 trillion national debt
By Sasha RogelbergDecember 12, 2025
18 hours ago
placeholder alt text
Economy
The Fed just ‘Trump-proofed’ itself with a unanimous move to preempt a potential leadership shake-up
By Jason MaDecember 12, 2025
17 hours ago
placeholder alt text
Success
At 18, doctors gave him three hours to live. He played video games from his hospital bed—and now, he’s built a $10 million-a-year video game studio
By Preston ForeDecember 10, 2025
3 days 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.