Discover what cyber security analysts do, the skills they need, and how our NCSC-certified MSc can help you start a cyber security analyst career.
If you’ve been researching cyber security careers, you’ve probably seen the role of cyber security analyst appear frequently. It’s one of the most in-demand positions in tech, and for good reason.
Cyber threats are on the rise, and the US Bureau of Labor Statistics (BLS) projects a 33% growth in cyber security jobs from 2020 to 2030 (Coding Temple). But what does a cyber security analyst's day-to-day job look like? And how do you build the skills to step into a cyber security analyst job with confidence?
Whether you’re changing careers, finishing your degree, or exploring where a postgraduate qualification could take you, this guide breaks down the reality of the role. It also explains how the King’s online Advanced Cyber Security MSc can help you prepare for it.
Stay ahead of the curve and build a thriving career in cyber security. Check out our 100% online, flexible Advanced Cyber Security MSc.
What is a cyber security analyst?
A cyber security analyst protects systems, networks, and data from cyber threats. That means defending against phishing attacks, malware, ransomware, unauthorised access, insider threats, and emerging attack techniques. In most organisations, analysts are the first line of defence. They monitor systems, investigate suspicious activity, and respond quickly when something isn’t right.
It’s often considered an entry-to-mid-level role within cyber security, but it sits at the heart of an organisation’s security strategy. Every alert reviewed and every vulnerability fixed reduces real business risk.
What does a cyber security analyst do? Core responsibilities
The day-to-day reality of a cyber security analyst job blends routine monitoring with moments of rapid response. While responsibilities vary by organisation, most roles include the following core areas.
Monitoring and threat detection
Analysts continuously monitor network traffic, system logs, and security alerts using tools such as SIEM (Security Information and Event Management) platforms. Their job is to spot anomalies (e.g., unusual login patterns, suspicious downloads, or irregular data transfers) before they escalate into serious incidents.
Incident response
When an alert turns into a confirmed threat, the analyst steps in. They help contain the issue, isolate affected systems, remove malicious software, reset credentials, and document what happened. Calm decision-making is essential here.
Vulnerability assessments and security testing
Rather than waiting for problems, analysts proactively scan for weaknesses. They support vulnerability assessments and sometimes assist with penetration testing - simulated attacks that test how robust an organisation’s defences are.
Reporting and communication
Security doesn’t exist in a vacuum. Analysts document incidents, produce reports, and often explain risks to non-technical colleagues or senior leadership. Clear communication is just as important as technical skill.
Security awareness and collaboration
Human error is a common entry point for attacks, so analysts often contribute to staff training and awareness initiatives. They also work closely with IT teams, developers, compliance specialists, and leadership.
In short, cyber security analysts protect organisations from cyber threats by combining technical monitoring, investigation, prevention, and communication.
What skills do you need to become a cyber security analyst?
Cyber security careers demand both technical depth and strong analytical thinking. Employers hiring for a cyber security analyst job typically look for a blend of the following.
Technical skills
- A strong understanding of networking fundamentals and protocols
- Familiarity with operating systems such as Windows and Linux
- Knowledge of intrusion detection and SIEM systems
- Experience with firewalls, VPNs, and endpoint protection tools
- Understanding of encryption and core cryptographic principles
- Basic scripting or programming ability (Python is particularly valuable)
Analytical and workplace skills
- Attention to detail
- Critical thinking and investigative reasoning
- Clear written and verbal communication
- Curiosity and willingness to keep learning
- Ability to remain calm under pressure
If you’re transitioning from another field, don’t underestimate your transferable strengths. Investigation, structured problem-solving, risk awareness, documentation, and communication are all highly relevant in cyber security roles.
Where do cyber security analysts work? Industries and employers
One of the strengths of cyber security careers is flexibility. Nearly every sector depends on secure digital infrastructure.
Cyber security analyst roles are common in:
- Financial services and fintech
- Healthcare and pharmaceuticals
- Government and defence
- Technology companies
- Retail and e-commerce
- Energy and critical infrastructure
- Consultancies and managed security service providers (MSSPs)
Some analysts work internally within a single organisation, developing in-depth knowledge of its systems. Others work externally for consultancies, supporting multiple clients and conducting security assessments.
With remote and hybrid options becoming increasingly common, geography is less restrictive than it once was. However, major cities like London continue to be strong hiring hubs.
Cyber security analyst career paths: what roles come next?
A cyber security analyst job is often the starting point rather than the destination.
With experience, professionals commonly move into:
- Senior Cyber Security Analyst
- Security Engineer
- Penetration Tester (Ethical Hacker)
- Incident Response Specialist
- Threat Intelligence Analyst
- Security Operations Centre (SOC) Lead
- Chief Information Security Officer (CISO)
The technical foundations you build early on, particularly in network security, testing, and risk management, underpin many of these advanced paths.
Studying our Advanced Cyber Security MSc can unlock a wide range of exciting new job options. Discover six reasons to get a degree in the subject.
How an Advanced Cyber Security MSc prepares you for a cyber security analyst career
If you’re aiming to enter or progress within cyber security roles, King’s College London’s Advanced Cyber Security MSc could be perfect for your goals. Our experts have designed it to help you build the expertise that today's employers demand.
Since we deliver it fully online and part-time, you can develop advanced knowledge while balancing work and other commitments.
Core technical foundations
Modules like Network Security, Cryptography, Security Testing, Security Engineering, and Computer Forensics and Cybercrime directly align with analyst responsibilities. They cover everything from understanding attack techniques to implementing robust countermeasures.
Security Management strengthens your ability to assess risk systematically and design cost-effective, real-world security strategies.
Emerging and specialist areas
Optional modules including AI Security and Privacy and Advanced Topics in Cyber Security allow you to explore cutting-edge developments shaping the future of cyber security careers.
Portfolio Research Dissertation
The portfolio-based dissertation develops your independent investigation skills and your ability to synthesise complex evidence. These skills are directly transferable to analyst, engineering, consulting, and governance roles.
Research-led excellence
King’s is ranked 6th in the UK for Computer Science (QS World University Rankings 2026) and recognised by the National Cyber Security Centre (NCSC) as an Academic Centre of Excellence in Cyber Security Research. Our programme is also NCSC-certified, reflecting the high quality and industry-relevant education you'll receive.
Learning from experts in the Department of Informatics, you’ll gain both theoretical depth and practical skills. You’ll be able to identify vulnerabilities, design strong defences, and adapt to evolving threats.
By the time you graduate, you’ll be prepared for roles across industry, government, and research. You'll have the technical confidence and analytical mindset required to thrive in cyber security analyst roles.
Ready to become a cyber security analyst? Your next steps
Cyber security is one of the most future-focused fields you can enter. The threat landscape continues to evolve, organisations face growing risk, and the demand for skilled professionals shows no sign of slowing.
At the heart of every effective security team is the cyber security analyst - the professional who monitors, investigates, and strengthens defences every single day.
If you’re serious about building a career protecting organisations from cyber threats, visit the King’s online Advanced Cyber Security MSc programme page. There, you'll find info on modules, career outcomes, fees, and more.
