Was Chemical Computing Group hit by ransomware?

Chemical Computing Group was listed by the Play ransomware operation (Canada), 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 Play ransomware group?

Play 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 Chemical Computing Group breach?

Play published data attributed to Chemical Computing Group. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Chemical Computing Group

Claimed by Play · listed 4 months ago

Age

since listed · data leaked

Status timeline

ListedFeb 22, 2026
Data leakeddate unknown

At a glance

Group: Play
Status: Data leaked
Country: Canada
Sector: Technology
Listed on leak site: Feb 22, 2026

About the victim

AI dossier — public-source company profile

Chemical Computing Group (CCG) is a Montreal-based software company with over 32 years of innovation, specializing in molecular modeling, simulations, and machine learning software for pharmaceutical, biotechnology, and academic institutions worldwide. Its flagship product, the Molecular Operating Environment (MOE), is a widely adopted platform integrating visualization, modeling, and simulations for drug discovery. CCG also develops MOEsaic (SAR analysis) and PSILO (protein structure database systems), and maintains offices in North America, Europe, and Asia.

Industry: Computer-Aided Molecular Design Software
Address: Montreal, Canada
Employees: 51-200
Founded: 1994

Attack summary

Severity: high — Data has been published by the group (data_published status), indicating confirmed exfiltration. CCG handles sensitive pharmaceutical and biotech R&D software and customer data from major industry players, making the exposure of business and potentially proprietary scientific data a significant risk. No evidence of regulated PII at scale or medical records specifically, keeping it from critical.

The Play ransomware group claims to have attacked Chemical Computing Group and lists the disclosure status as data_published, indicating exfiltration and publication of stolen data. No specific ransom amount or data volume was stated in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Corporate business data
Potentially proprietary software/research data
Employee records
Client/customer information
Financial records

What the group claims

Canada

The leak post

captured from the group's site

| Play ransomware HAS NEVER PROVIDED AND DOES NOT PROVIDE THE RaaS, read the FAQ page.WE NEVER WRITES FIRST, IF SOMEONE WRITES TO YOU, THEY ARE SCAMMERS.we'll buy your access: 75tkvxemb6zpyk3fbl3mwm32jklc2sdjacb3kazrioamopbfn2w2z5qd.onionIf we have not responded to you by email within 12 hours, please leave your contact information on the website in the contact tab. |  
| --- |  
| EMA Engineering & Consulting👁️ views: 321added: 2026-05-07publication date: 2026-05-11   | Accessoires Outillage Ltee👁️ views: 280added: 2026-05-07publication date: 2026-05-11   | K & E Distributing👁️ views: 282added: 2026-05-07publication date: 2026-05-11   |  
| Sokolin👁️ views: 7261   | Barnes Solicitors LLP👁️ views: 7182   | Witt UK Group👁️ views: 8181   |  
| Valley Plating Inc👁️ views: 8198   | Dock Pros👁️ views: 8179   | Kivells👁️ views: 8149   |  
| Specflue👁️ views: 8136   | Weber Kracht & Chellew👁️ views: 8180   | Lucky Look👁️ views: 8285   |

Sources

Victim sitewww.chemcomp.com
Leak posthttp://k7kg3jqxang3wh7hnmaiokchk7qoebupfgoik6rha6mjpzwupwtj25yd.onion/topic.php?id=JUfVegr1nzOTsW

Source

Indexed 4 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 Play

**Overview:** Play (also known as PlayCrypt) is a financially motivated ransomware group that emerged in late 2022, conducting targeted attacks against organizations across multiple sectors with a focus on financial extortion. **Origin & Affiliation:** The group's country of origin remains unclear based on public reporting, though they appear to operate independently rather than as a traditional ransomware-as-a-service model. **Attack Methodology:** Play ransomware operators typically gain initial access through compromised Remote Desktop Protocol (RDP) credentials and exploit valid accounts, then move laterally through networks using tools like Cobalt Strike before deploying their custom ransomware payload. The group employs double extortion tactics, stealing sensitive data before encryption and threatening to publish it on their leak site if ransom demands are not met. **Notable Campaigns:** According to CISA advisories, Play has targeted over 300 entities globally since its emergence, with significant impacts on critical infrastructure sectors including healthcare, education, and government services, though specific ransom amounts and individual victim details vary in public reporting. **Current Status:** Play remains an active threat as of 2024, continuing to target organizations primarily in North America and Europe according to ongoing security researcher observations and law enforcement warnings. The group has been linked to 1,304 public disclosures across our corpus. First observed on a leak site on November 26, 2022; most recent post June 11, 2026. The operation is currently active.

Also tracked as: PlayCrypt.

Timeline of this disclosure

February 22, 2026Chemical Computing Group listed by Playon the group's public leak site

Other recent disclosures by Play

Play has been linked to 1,304 public victims on Darkfield. A sample of the most recent:

See the full Play dossier →

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,526 disclosures indexed across all operators we track. Geographically, Chemical Computing Group is reported in Canada, a country with 810 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Play means Chemical Computing Group 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 Play'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.