Update: On November 13, Rocky Mountain Gastroenterology (RMG) reported the incident to HHS OCR as affecting 366,491 patients. RMG never responded to the inquiries this site submitted to it on October 19 and October 27.
SuspectFile reports:
This article will cover what appears to be a triple cyberattack on the IT systems of Rocky Mountain Gastroenterology (RMG), a medical clinic specializing in gastroenterology with its main office in Lakewood, Colorado, and 26 operational locations. According to information gathered in recent weeks, the attack was carried out by three different cybercriminal groups.
Initial findings suggested that RMG had been targeted by only two groups, Meow Leaks and RansomHub. However, a third group was later identified thanks to a tip from Dissent at DataBreaches.net: the Trinity ransomware group.
As reported on the respective blogs of these three groups in recent days, the total amount of exfiltrated data is not uniform and varies by group:
- Trinity: 330 GB
- RansomHub: 200 GB
- Meow Leaks: over 80 GB
Currently, the Trinity blog no longer lists any of its victims, but we have confirmed two records through ransomfeed.it and ransomlook.io.
Read more at SuspectFile, who saved us all a lot of time and effort by going through the data leaks and writing up details of what he found.
As of today, there is still no substitute notice or statement on the covered entity’s website about any breach, much less multiple breaches. Nor is there any entry on HHS’s public breach tool, although they do not always post notices as soon as they get them. Although SuspectFile was able to report that protected health information for 169,000 patients was found, because there was no available tranche from Trinity to examine, we do not know the actual total number of unique patients represented in all three incidents.
This situation seems to call for a thorough investigation that considers, in part, how was access gained in each case — were all threat actors using the same access? Once they first detected access or abnormal activity, what did RMG do to prevent or block further access? Trinity was the first to publicly list or claim responsibility for an attack on RMG, followed by RansomHub and then Meow Leaks, but is that the actual sequence in which access was gained?
DataBreaches had emailed an inquiry to RMG on October 19 seeking additional details, but no reply has been received as of publication.