Encryption Event Detected
EDR flags mass file modification on two fund accounting servers and an attempt to stop the EDR agent on one of them. The NAV team is locked out of shared drives two hours before the daily pricing cut-off. A ransom note titled READ_ME_NOW.txt appears in every affected directory.
QUESTION 1 · REVEALED
What are your first three containment actions — and who has the authority to isolate production systems?Facilitator guide · model answer
- 01Isolate both file servers via EDR network containment
- 02Block east-west RDP at the core switch
- 03Page the IR lead and invoke the major-incident bridge
- 04Engage compliance on regulatory and client notification