Who betrayed Persona 5?

Who do you think betrayed Persona 5? Was it one of the Phantom Thieves, or was it someone from outside their group? What clues does the game provide that could lead us to the traitor? And what are the motivations behind the betrayal? Is it personal, or is there a larger conspiracy at play? We need to delve deeper into the story and analyze the evidence to uncover the truth. Who do you suspect is the culprit, and why?