gdpr-data-handling

# GDPR Data Handling Practical implementation guide for GDPR-compliant data processing, consent management, and privacy controls. ## When to Use This Skill - Building systems that process EU personal data - Implementing consent management - Handling data subject requests (DSRs) - Conducting GDPR compliance reviews - Designing privacy-first architectures - Creating data processing agreements ## Core Concepts ### 1. Personal Data Categories | Category | Examples | Protection Level | | ---------------------- | --------------------------- | ------------------ | | **Basic** | Name, email, phone | Standard | | **Sensitive (Art. 9)** | Health, religion, ethnicity | Explicit consent | | **Criminal (Art. 10)** | Convictions, offenses | Official authority | | **Children's** | Under 16 data | Parental consent | ### 2. Legal Bases for Processing ``` Article 6 - Lawful Bases: ├── Consent: Freely given, specific, informed ├── Contract: Necessary for contract performance ├── Legal Obligation: Required by law ├── Vital Interests: Protecting someone's life ├── Public Interest: Official functions └── Legitimate Interest: Balanced against rights ``` ### 3. Data Subject Rights ``` Right to Access (Art. 15) ─┐ Right to Rectification (Art. 16) │ Right to Erasure (Art. 17) │ Must respond Right to Restrict (Art. 18) │ within 1 month Right to Portability (Art. 20) │ Right to Object (Art. 21) ─┘ ``` ## Detailed worked examples and patterns Detailed sections (starting with `## Implementation Patterns`) live in `references/details.md`. Read that file when the navigation summary above is insufficient. ## Best Practices ### Do's - **Minimize data collection** - Only collect what's needed - **Document everything** - Processing activities, legal bases - **Encrypt PII** - At rest and in transit - **Implement access controls** - Need-to-know basis - **Regular audits** - Verify compliance continuously ### Don'ts - **Don't pre-check consent boxes** - Must be opt-in - **Don't bundle consent** - Separate purposes separately - **Don't retain indefinitely** - Define and enforce retention - **Don't ignore DSARs** - 30-day response required - **Don't transfer without safeguards** - SCCs or adequacy decisions