Problem
Can you give a detailed description of the attack and mitigations of the Marriott International Breach. Please could you answer these questions with detail!
Technical details of how the attack was performed:
1) What tactics and techniques were used to perform the attack?
2) Include Mitre Att&ck references where appropriate.
3) What was the vulnerability (be as technical as possible)?
4) How did the actor penetrate computer or network security?
5) What was the payoff?
6) How many and which population was affected?
7) How was the attack mitigated?
8) Share any other technical details that you find relevant.