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Hacker Defaces Internet Archive, Steals Data on 31 Million Users

A hacker briefly managed to display a pop-up on the site, claiming the Internet Archive had suffered a 'catastrophic security breach.' The breach has since been confirmed.

 & Michael Kan Principal Reporter

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A hacker appears to have broken into the Internet Archive, stealing information on millions of users. On Wednesday, the main domain for the site briefly displayed a pop-up, claiming the Internet Archive had suffered a “catastrophic security breach.”

Several users spotted the mysterious pop-up before the Internet Archive’s main site at web.archive.org and its Wayback Machine went offline due to an apparent DDoS attack.

“Have you ever felt like the Internet Archive runs on sticks and is constantly on the verge of suffering a catastrophic security breach? It just happened. See 31 million of you on HIBP!” the pop-up told users. 

HIBP refers to Have I Been Pwned, a well-known site in the security community that catalogs and warns the public about data breaches. Hence, the pop-up signaled the hacker stole a trove of user information and plans on leaking it.

Troy Hunt, the security researcher who runs HIBP, has since confirmed the breach. The hacker sent him a 6.4GB database covering stolen information on 31 million user accounts, including email addresses, user names and hashed passwords. Users can go to HIBP to see if they've been affected.

The Internet Archive’s founder Brewster Kahle hasn’t commented on the apparent hack. But in a tweet, he said the Internet Archive is currently fending off a DDoS attack, after experiencing an earlier attack the day before. “We are working to bring archive.org back online,” Kahle said in his tweet

Jason Scott, an archivist for the Internet Archive, added on Mastodon: “Someone is DDOSing the internet archive, so we've been down for hours.” Such attacks involve summoning a flood of internet traffic and bombarding a website or app, forcing it offline.

The culprit behind the alleged hacking and DDoS remains unclear. But The Verge reports that a Twitter account @Sn_darkmeta has been claiming responsibility for the DDoS. In May, the Internet Archive also faced another DDoS attack, which @Sn_darkmeta says it was also behind.

“They (The Internet Archive) are under attack because the archive belongs to the USA, and as we all know, this horrendous and hypocritical government supports the genocide that is being carried out by the terrorist state of ‘Israel,’” @Sn_darkmeta posted in explaining the attacks. 

However, the Internet Archive operates as a nonprofit that’s merely based in San Francisco. 

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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