Was rheem hit by ransomware?

rheem was listed by the Incransom ransomware operation (United States), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Incransom ransomware group?

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

What data was leaked in the rheem breach?

Incransom published data attributed to rheem. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Rheem Manufacturing Company

listed as rheem · Claimed by Incransom · listed 2 months ago

53d

Age

since listed · data leaked

Status timeline

ListedApr 20, 2026
Data leakeddate unknown

At a glance

Group: Incransom
Status: Data leaked
Country: United States
Sector: Manufacturing
Listed on leak site: Apr 20, 2026

About the victim

AI dossier — public-source company profile

Rheem Manufacturing Company is a global manufacturer specializing in heating, cooling, and water heating products, headquartered in Atlanta, Georgia. Founded in 1925, the company produces residential and commercial water heaters, boilers, air conditioning units, and HVAC equipment. Rheem is recognized as a global leader in its sector with a strong emphasis on energy efficiency, offering numerous ENERGY STAR® certified products.

Industry: Heating, Cooling & Water Heating Equipment Manufacturing
Address: 1100 Abernathy Road, Suite 1700, Atlanta, GA 30328, United States
Founded: 1925

Attack summary

Severity: critical — Confirmed exfiltration and publication of 320 GB of data including regulated PII (employee personal information), sensitive financial data, proprietary technical/engineering documentation, and confidential contracts/NDAs at significant scale from a major global manufacturer.

The incransom group claims to have exfiltrated 320 GB of data comprising 479,856 files across 76,897 folders, including technical documentation, engineering drawings, test reports, employee personal information, corporate records, contracts and NDAs, and financial information. The status is marked as data_published, indicating the stolen data has been released.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Technical documentation
Engineering drawings
Test reports
Employee personal information
Corporate information
Contracts and agreements
Non-disclosure agreements
Financial information and metrics

What the group claims

Rheem Manufacturing Company 1100 Abernathy Road, Suite 1700 Atlanta, GA 30328, United States www.rheem.com is a well-established manufacturer specializing in heating, cooling, and water heating products. Founded in 1925, the company has its headquarters in Atlanta, Georgia, and has grown to become a global leader in its industry. Company Overview. Rheem produces a wide range of products, including residential and commercial water heaters, boilers, air conditioning units, and heating, ventilation, and air conditioning (HVAC) equipment. The company is particularly noted for its commitment to energy efficiency, offering numerous ENERGY STAR® certified products. Leaked data: 320 GB (479,856 Files, 76,897 Folders) includes developments: technical documentation, drawings, test reports and other technical information, employee data containing personal information, corporate information, contracts and agreements (including non-disclosure agreements), financial information and metrics, and much more.

Sources

Leak posthttp://incblog6qu4y4mm4zvw5nrmue6qbwtgjsxpw6b7ixzssu36tsajldoad.onion/blog/disclosures/69e6890e8f1d14b74393c8d9

Source

Indexed 2 months 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 Incransom

Incransom is a ransomware group that emerged in August 2023, operating with primarily financial motivations as evidenced by their targeting of high-value sectors across multiple developed nations. The group's origin and specific affiliations remain undocumented by major threat intelligence organizations, though their operational patterns suggest they likely operate independently rather than as a ransomware-as-a-service model. With 734 documented victims, Incransom has demonstrated a preference for targeting organizations in the United States, Canada, United Kingdom, Germany, and Australia, with particular focus on healthcare, technology, business services, and manufacturing sectors, though their attack methodology and specific technical capabilities have not been extensively documented by established security researchers or government agencies. The group's notable campaigns and specific high-profile victims have not been publicly detailed by CISA, FBI, Mandiant, or other reputable threat intelligence sources, suggesting either operational security effectiveness or limited visibility into their most significant operations. Based on available intelligence, Incransom appears to remain active as of recent reporting periods, though comprehensive analysis of their current operational status requires additional documentation from established threat intelligence sources. The group has been linked to 829 public disclosures across our corpus. First observed on a leak site on August 9, 2023; most recent post June 11, 2026. The operation is currently active.

Also tracked as: inc ransom.

Timeline of this disclosure

April 20, 2026rheem listed by Incransomon the group's public leak site

Other recent disclosures by Incransom

Incransom has been linked to 829 public victims on Darkfield. A sample of the most recent:

See the full Incransom dossier →

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, rheem is reported in United States, a country with 2,714 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Incransom means rheem appeared on a ransomware extortion site and data attributed to it has been published. 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 Incransom'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.