performing-purple-team-atomic-testing

Executes Atomic Red Team tests mapped to MITRE ATT&CK techniques, performs coverage gap analysis across the ATT&CK matrix, and runs detection validation loops to measure blue team visibility. Covers Invoke-AtomicRedTeam PowerShell execution, ATT&CK Navigator layer generation for heatmaps, Sigma rule correlation, and continuous atomic testing pipelines. Activates for requests involving purple team exercises, atomic test execution, ATT&CK coverage assessment, detection engineering validation, or adversary emulation testing.