Calipage Humblet listed on thegentlemen ransomware leak site

• Ransomware group: thegentlemen
• Country: Belgium
• Announcement date: June 15, 2026

Thegentlemen claims a data breach at Calipage Humblet

The threat actor known as thegentlemen has published a post on their leak site claiming to have compromised data belonging to Calipage Humblet. According to the announcement made on June 15, 2026, the group alleges that they have successfully gained unauthorized access to the company's systems and subsequently exfiltrated data. This development places the Belgian organization on the group's public list of victims.

Publicly available information regarding the specific identity and operational details of the group known as thegentlemen remains limited. While the group has made these claims, the details surrounding their specific methods or the exact nature of their intrusion have not been fully disclosed in the public domain at this time.

Details regarding the alleged data exfiltration

Despite the claims made by the threat actor, there is currently a lack of specific technical details regarding the breach. No screenshots or detailed information regarding the nature of the allegedly leaked data have been provided by the group. Furthermore, the announcement does not specify the volume of data involved or the specific file counts that were purportedly stolen during the incident.

The listing names no specific data types that have been compromised. As of the current report, there is no information available regarding the specific contents of the alleged leak or the scope of the exfiltration.

About Calipage Humblet

Calipage Humblet is a Belgian family business with a long history, having been founded in 1910. The company specializes in the provision of office and school supplies. Additionally, the organization provides professional printing and copy services as part of the broader Calipage Benelux network.

Potential implications and broader context

If these data breach claims are verified, several significant consequences may follow. In the context of Belgium, the incident could trigger legal processes under the General Data Protection Regulation (GDPR) regulations. The impact of such a breach often extends beyond immediate technical recovery, potentially affecting the company's business operations and the level of trust maintained with its customers.

Depending on the content of the leaked data, the exposure of personal information belonging to employees or customers could lead to secondary risks, such as identity theft. Ransomware groups frequently employ double extortion tactics, a method where attackers not only encrypt a victim's systems but also threaten to publish sensitive information to pressure the organization into paying a ransom. Consequently, it is possible that the company may have faced a ransom demand intended to prevent the public release of their data.

In general, when organizations face such threats, they often focus on strengthening their defensive posture. This typically includes implementing robust access controls, maintaining regular offline backups, and enhancing monitoring capabilities to detect unauthorized access early. For companies in sectors handling significant amounts of client and employee information, maintaining compliance with regional data protection laws is a critical component of their risk management strategy to mitigate the impact of potential leaks.