DataBreaches.Net

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

Mosaic Mental Health notifies patients of breach

Posted on May 20, 2024 by Dissent

On September 25, 2023, Riverdale Mental Health d/b/a Mosaic Mental Health (“MOSAIC”) notified HHS of an incident that affected 7,281 patients. The incident was coded as a “hacking/IT incident” involving their network, but no further details were available at the time.

On April 3, more than six months later, they sent out notification letters. Massachusetts limits what entities can disclose, but their notification to Massachusetts residents states:

On October 6, 2023, MOSAIC’s anti-malware program detected and isolated unauthorized activity within its computer systems (the “Incident”). Upon being alerted of the Incident, MOSAIC engaged a specialized incident response vendor to conduct a forensic investigation to determine the extent and root cause of the incident. The forensic investigation concluded that protected health information may have been accessed by an unauthorized user. As such, MOSAIC is notifying all those clients whose information may have been impacted as a result of the Incident.

If that timeframe is accurate, how did they report the incident to HHS on September 25 as affecting 7,281 patients?

An October 2023 report by HIPAA Journal states that the breach was discovered on July 27, 2023. That makes more sense. Unfortunately, HIPAA Journal doesn’t link to any source for their report.

But where is the explanation for why it took so long to notify patients?

DataBreaches emailed MOSAIC to inquire about the timeframe and to ask why it took so long to notify patients. No group ever claimed responsibility for this incident, but was this a ransomware attack or hack with an extortion demand?  Was data exfiltrated or just accessed?

No reply was received by publication, but this post will be updated if a reply is received.

Category: BlogCommentaries and AnalysesHackHealth Data

Post navigation

← Swiss law enforcement actions appear linked to seizure of BreachForums
HHS launches $50M security initiative to thwart hospital ransomware →

2 thoughts on “Mosaic Mental Health notifies patients of breach”

  1. Steve says:
    May 22, 2024 at 10:29 am

    Re: An October 2023 report by HIPAA Journal – There was a breach notice on the Mosaic website in October that provided details that we included in the report, but that notice is no longer on the site.

    Steve, The HIPAA Journal.

    1. Dissent Doe PHD says:
      May 22, 2024 at 11:20 am

      That’s what I guessed. Thanks for confirming it, Steve.

Comments are closed.

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

  • Operation ENDGAME strikes again: the ransomware kill chain broken at its source
  • Mysterious Database of 184 Million Records Exposes Vast Array of Login Credentials
  • Mysterious hacking group Careto was run by the Spanish government, sources say
  • 16 Defendants Federally Charged in Connection with DanaBot Malware Scheme That Infected Computers Worldwide
  • Russian national and leader of Qakbot malware conspiracy indicted in long-running global ransomware scheme
  • Texas Doctor Who Falsely Diagnosed Patients as Part of Insurance Fraud Scheme Sentenced to 10 Years’ Imprisonment
  • VanHelsing ransomware builder leaked on hacking forum
  • Hack of Opexus Was at Root of Massive Federal Data Breach
  • ‘Deep concern’ for domestic abuse survivors as cybercriminals expected to publish confidential abuse survivors’ addresses
  • Western intelligence agencies unite to expose Russian hacking campaign against logistics and tech firms

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

  • Widow of slain Saudi journalist can’t pursue surveillance claims against Israeli spyware firm
  • Researchers Scrape 2 Billion Discord Messages and Publish Them Online
  • GDPR is cracking: Brussels rewrites its prized privacy law
  • Telegram Gave Authorities Data on More than 20,000 Users
  • Police secretly monitored New Orleans with facial recognition cameras
  • Cocospy stalkerware apps go offline after data breach
  • Drugmaker Regeneron to acquire 23andMe out of bankruptcy

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.