We often hear of the exploits of malicious actors and red team penetration testers. We constantly hear "There's always a way in! Everything can be hacked! You're fighting a losing battle! We're so 1337!". But what about those stories of when Blue Team stops an attacker cold? When Blue Team wins? This is their story, Blue Team's story, as told by an attacker who went up against the best and was beaten. Hear the Red Team "Singing the Blues" as they go through stories where the Blue Team detected, responded, contained, and caught the Red Team. We'll go through specifics on the Blue Team actions and provide key technical, procedural, and methodological take-aways on what actually works to stop the attackers.