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This is the kind of question that sounds straightforward but you can go a dozen different directions.
Start by framing the problem as a defense-in-depth strategy: detect, isolate, and contain the threat while preserving evidence. Then walk through a layered response plan covering network segmentation, endpoint controls, and rapid incident response, emphasizing trade-offs between speed and safety. Finally, tie it back to software engineering by discussing how to build systems that are resilient to lateral movement.
Pro tip: Show that you understand the attacker's perspective: ransomware often spreads via SMB, RDP, or compromised credentials, so mention specific protocols and how to block them. Also, highlight the importance of having a pre-approved incident response playbook to avoid decision paralysis during an active attack.
Explain how you would identify the ransomware (e.g., via EDR alerts, unusual file encryption patterns, or network traffic anomalies) and confirm the scope of the infection before taking action.
Describe immediate containment steps: disconnect infected machines from the network, disable compromised accounts, and block malicious IPs/domains at the firewall.
Discuss how to prevent lateral movement by enforcing network segmentation, disabling unnecessary protocols (e.g., SMB, RDP), and applying least-privilege access controls.
Outline the process of removing the ransomware, restoring from clean backups, and patching vulnerabilities that allowed the initial breach.
Emphasize post-incident analysis: conduct a root cause analysis, update incident response plans, and implement monitoring to detect future threats faster.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.