Was Mansfield Family Dentistry hit by ransomware?

Mansfield Family Dentistry was listed by the Everest ransomware operation as a victim being extorted; data had not been published at the time of listing. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Everest ransomware group?

Everest is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

Ransomware victim disclosure

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Mansfield Family Dentistry

Claimed by Everest · listed 1 day ago

Age

since listed · listed for ransom

Status timeline

ListedOct 1, 2026

Current state: Listed for ransom

At a glance

Group: Everest
Status: Listed for ransom
Sector: Healthcare
Listed on leak site: Oct 1, 2026

About the victim

AI dossier — public-source company profile

Mansfield Family Dentistry is a dental practice. No further details are publicly available from the clearnet or the leak post.

Industry: Dental Practice

Attack summary

Severity: low — Listing only, no proof files advertised, no data inventory described, no operational impact claimed, and no exfiltration confirmed.

The Everest group lists Mansfield Family Dentistry on its leak site, but the post contains no substantive claim of what was stolen or encrypted. The group provides only a link without description or proof.

low

The leak post

captured from the group's site

[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/mansfield-family-dentistry)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/emirates-flight-catering)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/oasis-legal-group)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/indonesia-s-customs-analytics-platform)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/rehab-clinics-group-ltd)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/liberty-mutual-insurance)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/advanced-psychiatry-associates)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/sidra-kuwait-hospital)
[ ](http://everestndkvzcibcje2cqxhre2hmmybl3rn2gwzwsblz7gx6uryn5rad.onion/news/akm-enterprises-inc)
Pick a chronicle on the left to start reading.

Screenshot of the leak post

Leak screenshot for Mansfield Family Dentistry

Sources

Source

Indexed 1 day ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About Everest

Everest is a financially-motivated ransomware group that emerged in September 2021, operating with a focus on profit-driven extortion campaigns against organizations primarily in the United States and Europe. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their operational patterns suggest they likely operate as an independent entity rather than a formal ransomware-as-a-service model. Limited public documentation exists regarding Everest's specific attack methodologies, initial access vectors, or technical capabilities, though their victim profile indicates they employ standard ransomware tactics targeting a diverse range of sectors including healthcare, technology, business services, and manufacturing organizations. Since their emergence, Everest has claimed responsibility for attacks against 339 victims across multiple countries, with the United States, United Kingdom, Italy, Germany, and Spain representing their primary geographic targets, though no specific high-profile incidents or major ransoms have been publicly documented by law enforcement or major security firms. As of current reporting, Everest appears to remain an active threat actor, though the limited public intelligence available suggests they operate as a lower-tier ransomware group compared to more prominent and well-documented criminal organizations. The group has been linked to 413 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post October 1, 2026. The operation is currently active.

Timeline of this disclosure

October 1, 2026Mansfield Family Dentistry listed by Everest on the group's public leak site

Other recent disclosures by Everest

Everest has been linked to 413 public victims on Darkfield. A sample of the most recent:

See the full Everest dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,608 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Everest means Mansfield Family Dentistry appeared on a ransomware extortion site and is being pressured to pay before any publication. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Monitor for the data appearing on Everest's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.