MS13-089 surfaced on our tracker for the first time on 15 August 2026, with a single claimed victim to date: servmarmg.cl, a Chilean organization based in Valparaíso. The group's sector and geographic footprint cannot yet be assessed beyond this lone claim, and no MITRE ATT&CK techniques have been catalogued for it, leaving its intrusion methods, encryption tooling, and extortion tactics undocumented at this stage. No group description or self-authored claims are on file, so no assessment of its stated identity or rhetoric can be offered. Given the single data point, this profile should be read as an initial sighting rather than an established pattern of activity.