Cloud security is one of the fastest-growing areas in cyber, and employers increasingly expect candidates to understand how security changes in AWS, Azure and Google Cloud. This guide covers the concepts and questions that come up most.
Why cloud security is different
In the cloud, the network perimeter dissolves and identity becomes the primary control plane. Misconfiguration — not sophisticated exploits — causes most cloud breaches, so employers test whether you understand secure configuration and the shared responsibility model.
Core concepts you must know
- The shared responsibility model: the provider secures the cloud (hardware, hypervisor); you secure what's in the cloud (data, IAM, configuration). Be able to give examples of each side.
- Identity and Access Management (IAM): least privilege, roles vs users, avoiding long-lived keys, and why over-permissioned identities are dangerous.
- Common misconfigurations: public storage buckets, overly-permissive security groups, exposed management ports, and unencrypted data.
- Data protection: encryption at rest and in transit, key management (KMS).
Cloud-specific attacks
- SSRF against metadata endpoints: why Server-Side Request Forgery is especially dangerous in the cloud (stealing instance credentials). Ties to the OWASP Top 10.
- Privilege escalation via IAM misconfiguration.
- Exposed storage and secrets in code.
Likely interview questions
- Explain the shared responsibility model with an example.
- How would you secure IAM in AWS or Azure?
- What are the most common cloud misconfigurations and how do you prevent them?
- Why is SSRF more impactful in cloud environments?
- How do you monitor and detect threats in the cloud? (CloudTrail, GuardDuty, Azure Defender).
How to prepare
Use a free-tier cloud account, practise secure IAM and storage configuration, and understand provider-native security tooling. This connects to the network security and SOC analyst guides, and fits the wider cyber security career path.
Rehearse these under realistic pressure with AI Interview™, decode a specific vacancy with Job Intelligence™, close any gaps with Career Coach, and evidence your progress in your Career Passport™.
Focus on the shared responsibility model
The single most important cloud concept is shared responsibility: the provider secures the cloud infrastructure; you secure what you put in it — identity, configuration, data and access. Most cloud breaches stem from customer-side misconfiguration, not provider failure, so be ready to discuss this clearly.
High-value topics
IAM and least privilege, misconfigured storage (public buckets), network controls (security groups, private endpoints), encryption at rest and in transit, and logging/monitoring. Relate these to zero trust and detection via SIEM. Concrete examples of securing a real deployment set you apart in any cyber security interview.