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Gentlemen Ransomware Group Targets Esri South Africa

First seen 11 Nov 2026, 23:43 UTC • •

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ThreatCluster AI
ThreatCluster •November 11, 2026 at 23:44 UTC

The Gentlemen ransomware group has claimed responsibility for a breach involving Esri South Africa, a distributor of the ArcGIS mapping platform. The group has listed Esri South Africa on its leak site, although no specific details about the data taken have been provided, such as file counts or data size. Esri South Africa has not publicly confirmed any incident, and the claim remains unverified. The potential impact includes sensitive project and client files, as the company supports various sectors including government and banking. Security professionals are advised to treat this as an unverified threat-actor claim until further confirmation is available.

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Timeline

2026-11-11
Gentlemen ransomware claims breach
The group added Esri South Africa to its leak site, claiming a data breach without providing specific details.
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Common questions

Has Esri South Africa confirmed the breach?
No, Esri South Africa has not publicly confirmed any incident related to the ransomware claim.
What type of data could be at risk?
The breach could potentially involve sensitive project and client files, especially given Esri's work with government and banking sectors.
Should we take immediate action?
As the claim is unverified, it is advisable to monitor for updates and prepare for potential impacts on sensitive data.