It is 03:14 UTC. You are the on-call analyst at Meridian Financial Services. A SIEM alert just fired. An attacker has been inside the network for 18 days.
Threat meters are climbing. Every second you delay, the attacker gets closer to deploying ransomware. You have four phases to contain the breach, respond to regulators, and brief the board.
This is not a quiz. You make decisions. You click actions. Some are right — they contain the threat and earn points. Some are wrong — they make things worse and lose time. Read the evidence. Think before you act.