Senior Cyber Security Analyst Interview Questions UK: 8 Real Questions and What Interviewers Want

Before your Senior Cyber Security Analyst interview, it helps to see the questions from the interviewer's side. We have picked eight from our set of 16 and added the reason each one gets asked.

Eight Senior Cyber Security Analyst interview questions, and what the interviewer is thinking

1. How do attackers move laterally inside a Windows network, and how would you detect it?

Why they ask: To test depth of attacker-technique knowledge and the ability to turn it into detection.

2. How would you investigate a suspected business email compromise in Microsoft 365, including attacker-in-the-middle phishing?

Why they ask: To check hands-on cloud investigation skills for the most common incident type in UK organisations.

3. How do Kerberoasting and similar Active Directory credential attacks work, and what detections or mitigations would you put in place?

Why they ask: To test whether you know specific identity attacks and defensive responses at senior level.

4. How do you decide what to automate in a SOC using SOAR, and what are the risks?

Why they ask: To assess your judgement on automation and how it affects analyst work and safety.

5. How would you investigate suspected compromise of cloud credentials, such as an AWS access key exposed in a public repository?

Why they ask: To test cloud incident response ability beyond endpoint investigations.

6. You discover that a junior analyst closed an alert two days ago that turns out to be genuine malicious activity. How do you handle it?

Why they ask: To test your leadership in handling a missed detection fairly and effectively.

7. Tell me about a significant incident you led or investigated from detection through to closure. What was your role and what was the outcome?

Why they ask: To assess real incident handling experience and ownership at senior level.

8. What distinguishes a senior cyber security analyst from a mid-level analyst, and how do you add value beyond working alerts?

Why they ask: To see how you understand seniority and the impact expected at this level.

A sample answer to question 1

How do attackers move laterally inside a Windows network, and how would you detect it?

After gaining a foothold, attackers use valid credentials and built-in tools to blend in. Common methods include RDP, SMB with admin shares and PsExec, WMI and WinRM remote execution, scheduled tasks created remotely, and pass-the-hash or pass-the-ticket with stolen credentials. To detect them, I'd correlate authentication and process telemetry. Useful signals include logon type 3 and type 10 events from unusual sources, especially one account authenticating to many hosts in a short period, event 4648 explicit credential use, service installation events 7045 from remote hosts, and Sysmon process creation showing wmiprvse.exe or services.exe spawning cmd or PowerShell. Network telemetry showing workstation-to-workstation SMB is another strong clue, as users rarely connect to each other. I'd map detections to ATT&CK lateral movement techniques, baseline normal admin behaviour to tune out jump-host activity, and prioritise alerts when privileged accounts are involved. Preventive controls, such as host firewalls blocking workstation SMB, LAPS and tiered administration, reduce what attackers can do.

Common mistake to avoid: Listing tools without detection logic; ignoring legitimate admin noise

Want the rest?

Full model answers, key points and common mistakes for all 16 questions are on the Senior Cyber Security Analyst interview questions page. The first five are free, no sign-up needed.