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© 2026 EpochZero Learn. Educational content for learning purposes.

Course Instructor: Ashish Revar

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Data Protection for Cloud Infrastructure
LearnCloudUnit 43

Topic 4.3 of Data Protection for Cloud Infrastructure

Data Redaction, Tokenization & Obfuscation

Redaction patterns, tokenization mechanics, obfuscation techniques, and cryptographic erasure.

~30 min total·4 quadrants of structured content

By the end of this topic, you will

  • Apply redaction patterns to protect sensitive fields in cloud storage
  • Explain how tokenization removes card data from PCI-DSS scope
  • Distinguish obfuscation from encryption with honesty about limits
  • Implement cryptographic erasure to satisfy right-to-erasure obligations
Q1 · E-TUTORIAL (2)Q2 · E-CONTENT (1)Q3 · WEB RESOURCES (12)Q4 · SELF-ASSESSMENT (2)

Quadrant 1 · e-Tutorial

Video lectures and walkthroughs

Quadrant 2 · e-Content

Articles and case studies

cloud-security

Data Redaction, Tokenization & Obfuscation in the Cloud

Three techniques for protecting sensitive data in cloud environments — when to redact, when to tokenize, and when to obfuscate — with honest assessments of the limits of each approach.

12 min read

Quadrant 3 · Web Resources

Downloadable material and curated external links

Downloadable reference material

EBook

Cloud Security — eBook

v2026

Open resource

Cheatsheet

Cloud Security — Cheatsheet

v2026

Open resource

MCQ Bank

Cloud Security — MCQ Bank

v2026

Open resource

Question Bank

Cloud Security — Question Bank

v2026

Open resource

External links

PCI-DSS Tokenization Guidelines

PCI SSC guidelines for tokenization products and their role in reducing PCI-DSS scope.

PCI-DSS Tokenization Guidelines

PCI SSC guidelines for tokenization products and their role in reducing PCI-DSS scope.

AWS Macie — Sensitive Data Discovery

AWS Macie documentation for automated PII discovery and protection in S3.

AWS Macie — Sensitive Data Discovery

AWS Macie documentation for automated PII discovery and protection in S3.

Google Cloud DLP — Data Loss Prevention

GCP Cloud DLP documentation for inspecting, classifying, and de-identifying sensitive data.

Google Cloud DLP — Data Loss Prevention

GCP Cloud DLP documentation for inspecting, classifying, and de-identifying sensitive data.

NIST SP 800-188: De-Identifying Government Datasets

NIST guidance on de-identification techniques and their limits for government data.

NIST SP 800-188: De-Identifying Government Datasets

NIST guidance on de-identification techniques and their limits for government data.

Quadrant 4 · Self-Assessment

Test your knowledge — earn a certificate on first pass

Data Protection in the Cloud

Envelope encryption, AES modes, post-quantum cryptography, tokenisation, PKI, key management models, and IAM.

20 questions30 minPass: 60%

Cloud Security: Complete Assessment

Comprehensive 120-question assessment covering all six chapters of the Cloud Security eBook 2026.

120 questions120 minPass: 60%