MITRE ATT&CK is a public knowledge base that organizes the tactics and techniques real attackers use, from how they get in to how they steal information. Security teams use it as a common language to design detections, evaluate tools and measure how well their defenses are covered.
How TecnetOne handles it: TecnetSOC
MITRE ATTACK, ATT&CK matrix, tactics and techniques, ATT&CK framework