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全部技能

Cloud Security (IAM, VPC, Encryption)

⬢ 層級 2技術
+$25–40k
薪資影響
9 個月
學習時長
困難
難度
4
職業
一覽

Cloud Security protects infrastructure across AWS, GCP, Azure via Identity & Access Management (IAM), Virtual Private Clouds (VPC), encryption (KMS), compliance (SOC 2, HIPAA, GDPR), and advanced detection (GuardDuty, CSPM). Paths: Analyst (compliance monitoring, $120k–$160k) → Architect (design zero-trust networks, $160k–$220k) → Expert (incident response, threat detection, $200k–$280k). Tools: AWS IAM, GuardDuty, Wiz, Lacework, Prisma Cloud. Critical for cloud-first orgs.

什麼是 Cloud Security (IAM, VPC, Encryption)

Cloud Security is the practice of protecting infrastructure, data, and applications deployed on AWS, GCP, or Azure through layered controls: Identity & Access Management (who can do what), Virtual Private Clouds (network isolation), encryption (data at rest and in transit), secrets management, and compliance monitoring. In 2026, no cloud infrastructure is secure without zero-trust architecture: continuous verification of every user, device, and service, rather than perimeter-only defense. Cloud security engineers prevent breaches, design compliance frameworks (SOC 2, HIPAA, PCI-DSS, GDPR), and respond to incidents. The complexity is high: misconfigured S3 buckets leak billions of records annually; overly-permissive IAM roles enable lateral movement; unencrypted snapshots expose data. Unlike on-premises security (physical access controlled), cloud security requires discipline at every layer. A single mistake (public-readable S3 bucket, unencrypted RDS snapshot, exposed AWS credentials in code) can result in data breach, regulatory fines, and reputational damage.

🔧 工具與生態
AWS IAMAWS GuardDutyWizLaceworkPrisma CloudAqua SecuritySnyk CloudOrca SecurityCrowdStrike FalconHashiCorp Vault

💰 各地區薪資

地區初級中級高級
USA$115,000$160,000$220,000
UK£70,000£95,000£135,000
EU€75,000€105,000€150,000
CANADACA$125,000CA$170,000CA$235,000

🎯 使用 Cloud Security (IAM, VPC, Encryption) 的職業

Cloud Security Engineer
Cybersecurity Analyst
Penetration Tester
Security Engineer

❓ 常見問題

What's the difference between IAM roles, policies, and groups in AWS security?
IAM Roles = assumable identities (EC2, Lambda, cross-account). Policies = JSON docs defining permissions (Allow/Deny actions on resources). Groups = logical collections of users with shared policies. Best practice: use roles for workloads, groups for human users, principle of least privilege on all.
How do VPCs and security groups actually prevent attacks?
VPCs = network isolation (subnets, route tables). Security groups = stateful firewalls at instance level (allow inbound/outbound by IP/port/protocol). NACLs = stateless, broader subnet-level control. Layering all three = defense-in-depth. Common mistake: leaving inbound 0.0.0.0/0 on production ports.
What is GuardDuty and how is it different from other cloud security tools?
GuardDuty = AWS-native ML-powered threat detection (analyzes CloudTrail, VPC Flow Logs, DNS logs). Finds compromised instances, unauthorized API calls, cryptocurrency mining. CSPM tools (Wiz, Lacework) do posture management (misconfigs, compliance gaps). Run both: GuardDuty for threats, CSPM for compliance.
KMS vs Secrets Manager, when do I use which?
KMS = key management (encrypt data at rest/in transit, rotate keys). Secrets Manager = store/rotate database passwords, API keys, certs with automatic rotation policies. Use KMS for all data encryption; use Secrets Manager for credentials + secrets rotation.
What does zero-trust network architecture mean in cloud?
Zero-trust = never trust, always verify (continuous authentication, least privilege, microsegmentation). No perimeter-only defense. Enforce at every layer: IAM (who), network (lateral movement limits), encryption (data), monitoring (anomaly detection). Replaces traditional firewall-and-trust-inside model.
How do I audit cloud security compliance (SOC 2, HIPAA, GDPR)?
Use CSPM tools (Wiz, Lacework query frameworks). SOC 2 = controls audit, HIPAA = encryption+access logs, GDPR = data residency+deletion. Automate: CloudTrail logging, access reviews, encryption key rotation. Manual: quarterly policy review, incident response drills, third-party assessments.
What's the most common cloud security breach entry point?
Overly permissive IAM roles (admin role on EC2, unused AWS keys exposed). Second: misconfigured S3 buckets (public read/write). Third: exposed secrets (API keys in code, unencrypted Secrets Manager). Prevention: IAM Access Analyzer, S3 Block Public Access, secret scanning in CI, regular key rotation.

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