Mass Shooting is a attack_type tracked across 1 threat cluster and 1 intelligence report mention on ThreatCluster. First observed July 1, 2026; most recent activity July 1, 2026.
On June 22, 2026, a mass shooting occurred at San Jose National High School in Tacloban, potentially marking the first completed attack by the extremist network known as 764. Cybersecurity expert Angel Redoble presented…