DataBreaches.Net

Menu
  • About
  • Breach Notification Laws
  • Privacy Policy
  • Transparency Report
Menu

Welltok data breach exposes data of 8.5 million US patients

Posted on November 24, 2023 by Dissent

Bill Toulas reports:

Healthcare SaaS provider Welltok is warning that a data breach exposed the personal data of nearly 8.5 million patients in the U.S. after a file transfer program used by the company was hacked in a data theft attack.

Bill’s article has some good information in it, and you can read more at Bleeping Computer, but DataBreaches notes that the number reported to HHS that he cites as the total number affected may not be the total number at all.

Welltok is a business associate. Some of their covered entities/clients may have had them make the disclosure on their behalf, but some clients may choose to do their own notifications and disclosures. So, for example, Sutter Health issued their own notification and reported to HHS that 845,441 of their patients were affected.  When Welltok issued its report to HHS, did their 8.5 million include Sutter, in which case the numbers are being double-counted? If Sutter’s numbers were not included in Welltok’s report (as they should not have been since Sutter filed it’s own report with HHS), what other covered entities were also not included in Welltok’s figures that we need to know about?

And did Welltok’s report to HHS include the more than 426,000 people it subsequently reported to Maine on behalf of Graphic Packaging International and Premier Health? Those weren’t listed in Toulas’s article.

The Welltok incident is certainly one of the biggest patient data breaches of 2023, if not the biggest, but 8.5 million may not be the grand total for this one.

Category: Health DataU.S.

Post navigation

← Enterprise software provider Tmax leaks 2TB of data
Implications of “malware free” attacks on SMBs →

Now more than ever

"Stand with Ukraine:" above raised hands. The illustration is in blue and yellow, the colors of Ukraine's flag.

Search

Browse by Categories

Recent Posts

  • Texas gastroenterology and surgical practice victim of ransomware attack
  • Romanian Citizen Pleads Guilty to ‘Swatting’ Numerous Members of Congress, Churches, and Former U.S. President
  • North Dakota Enacts Financial Data Security and Data Breach Notification Requirements
  • Pro-Ukraine hacker group Black Owl poses ‘major threat’ to Russia, Kaspersky says
  • Vanta bug exposed customers’ data to other customers
  • Lyrix Ransomware Targets Windows Users with Advanced Evasion Techniques
  • Central Maine Healthcare tackles suspected cybersecurity issue; hospitals remain open
  • Cartier Data Breach: Luxury Retailer Warns Customers that Personal Data Was Exposed
  • Beyond the Pond Phish: Unraveling Lazarus Group’s Evolving Tactics
  • Akira doesn’t keep its promises to victims — SuspectFile

No, You Can’t Buy a Post or an Interview

This site does not accept sponsored posts or link-back arrangements. Inquiries about either are ignored.

And despite what some trolls may try to claim: DataBreaches has never accepted even one dime to interview or report on anyone. Nor will DataBreaches ever pay anyone for data or to interview them.

Want to Get Our RSS Feed?

Grab it here:

https://databreaches.net/feed/

RSS Recent Posts on PogoWasRight.org

  • Supreme Court Agrees to Clarify Emergency Situations Where Police Don’t Need Warrant
  • Stewart Baker vs. Orin Kerr on “The Digital Fourth Amendment”
  • Fears Grow Over ICE’s Reach Into Schools
  • Resource: HoganLovells Asia-Pacific Data, Privacy and Cybersecurity Guide 2025
  • She Got an Abortion. So A Texas Cop Used 83,000 Cameras to Track Her Down.
  • Why AI May Be Listening In on Your Next Doctor’s Appointment
  • Watch out for activist judges trying to deprive us of our rights to safe reproductive healthcare

Have a News Tip?

Email: Tips[at]DataBreaches.net

Signal: +1 516-776-7756

Contact Me

Email: info[at]databreaches.net

Mastodon: Infosec.Exchange/@PogoWasRight

Signal: +1 516-776-7756

DMCA Concern: dmca[at]databreaches.net
© 2009 – 2025 DataBreaches.net and DataBreaches LLC. All rights reserved.