OKJ Group Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On February 24, 2026, thegentlemen ransomware group listed OKJ Group on its leak site and stated that internal files had been exfiltrated during a ransomware attack. The number of individuals affected is not known, and no further details on the volume or contents of the material have been made public. This listing occurs against a backdrop in which ransomware operators routinely publish the names of targeted organisations to pressure victims into payment negotiations. Such claims are frequently difficult to verify independently at the time they appear.

Inside the incident

The only confirmed public information is the February 24, 2026 listing itself. The group asserts that files were removed from OKJ Group systems during a ransomware operation. No date for the underlying intrusion, no count of records, and no description of the encryption or exfiltration methods have been disclosed. The organisation has not issued a statement confirming or denying the claims.

Inside thegentlemen

Thegentlemen is one of several ransomware groups that maintain leak sites to publish names and sample data from claimed victims. These actors typically gain initial access through common vectors such as compromised remote-access services or stolen credentials, then move laterally before deploying encryption and exfiltrating material. Their listings serve as a form of public pressure rather than verified forensic reporting.

Who is OKJ Group?

OKJ Group operates as the online presence of Pluk Phak Praw Rak Mae Public Company Limited, a Thai company headquartered in Chiang Mai. Founded in 2014, the firm runs a chain of health-focused restaurants and cafes under the Oh Ka Jhu brand, offering prepared meals, salads, juices and bakery items. It also engages in organic produce cultivation and sells through full-service locations, delivery kitchens and kiosks. The company listed on the Stock Exchange of Thailand under ticker OKJ in October 2024.

What was likely exposed

The listing refers only to “internal files exfiltrated in ransomware attack.” No specific categories of data, such as customer names, payment details or employee records, have been identified in public statements. Organisations in the restaurant and food-production sector routinely hold supplier contracts, inventory records, financial statements, customer-order histories and employee information. The precise contents of any exfiltrated material therefore remain unconfirmed.

Why it matters

For individuals whose information may be among the files, the primary concern is the potential reuse of personal or financial details in subsequent fraud or account-takeover attempts. For the company, the incident adds to the operational and regulatory burdens already faced by a recently listed public entity that manages both customer transactions and supply-chain data. The absence of Reported Details limits precise risk assessment at this stage.

What to do if you're exposed

Monitor bank and credit-card statements for unauthorised activity and enable multi-factor authentication on any accounts linked to the organisation. Request a copy of your data from OKJ Group if you are a customer or employee. Readers can also run a free exposure scan of their email address against known breach datasets to determine whether their information has appeared in previously published collections.

AICompiled with AI assistance from public sources and published under our editorial standards.