GDPR and AI: What You Need to Know
By Learnia Team
GDPR and AI: What You Need to Know
This article is written in English. Our training modules are available in French.
Using AI in Europe? GDPR applies to your AI systems just like any other data processing. Here's what matters for AI applications—without the legal jargon.
GDPR Basics (Quick Refresher)
GDPR (General Data Protection Regulation) is the EU's data protection law that governs how personal data must be handled.
Core Principles
1. Lawfulness: Have a legal basis for processing
2. Purpose limitation: Use data only for stated purposes
3. Data minimization: Collect only what you need
4. Accuracy: Keep data correct and up-to-date
5. Storage limitation: Don't keep data longer than needed
6. Security: Protect data appropriately
7. Accountability: Be able to demonstrate compliance
How GDPR Applies to AI
Personal Data in AI
Any data that identifies a person:
Direct identifiers:
- Names, emails, phone numbers
- Photos, voice recordings
- IP addresses, device IDs
Indirect identifiers:
- Purchase history + location → identifies person
- Writing style + metadata → could identify person
When GDPR Kicks In
✓ Training AI on personal data
✓ User inputs containing personal data
✓ AI outputs that include personal data
✓ AI making decisions about individuals
✓ Any processing of EU residents' data
Key GDPR Requirements for AI
1. Legal Basis for Processing
You need a lawful reason to use personal data:
Common bases for AI:
- Consent: User explicitly agreed
- Contract: Necessary for service
- Legitimate interest: Balanced against user rights
⚠️ "We want to train AI" isn't automatically legitimate
2. Purpose Limitation
If you collected data for "customer support":
❌ Cannot use it to train AI without new consent
❌ Cannot use it for profiling
✓ Can use it to answer that customer's query
3. Data Minimization
❌ "Let's include everything in the prompt, just in case"
✓ "Include only the data needed for this specific task"
Practical: Filter PII before sending to AI APIs
4. Right to Explanation
If AI makes decisions affecting people:
❌ "The AI decided" (black box)
✓ "The decision was based on X, Y, Z factors"
Article 22: Right to not be subject to purely
automated decisions with significant effects
5. Data Subject Rights
Users can request:
- Access: What data do you have about me?
- Rectification: Fix incorrect data
- Erasure: Delete my data ("right to be forgotten")
- Portability: Give me my data in usable format
- Object: Stop processing my data
All apply to AI training/processing too
Practical AI Compliance Steps
Using Third-Party AI (OpenAI, Google, etc.)
1. Review provider's DPA (Data Processing Agreement)
2. Check where data is processed (US = extra steps)
3. Consider EU-based alternatives if needed
4. Don't send PII if not necessary
5. Document your compliance measures
Building Your Own AI
1. Privacy Impact Assessment before training
2. Document what personal data is in training data
3. Implement deletion mechanisms
4. Enable audit trails
5. Consider differential privacy
Customer-Facing AI (Chatbots, etc.)
1. Inform users AI is processing their input
2. Don't store conversations longer than needed
3. Allow users to request conversation deletion
4. Don't use conversations to retrain without consent
5. Document data flows
Common GDPR-AI Mistakes
1. Training on Customer Data Without Consent
❌ "We'll just use customer emails to train our AI"
✓ Obtain specific consent for AI training
✓ Or aggregate/anonymize the data
2. Sending PII to US-Based AI Services
❌ Send unfiltered customer data to OpenAI
✓ Filter PII first
✓ Or use EU-based AI services
✓ Or have proper transfer mechanisms (DPA)
3. No Transparency
❌ Users don't know AI is involved
✓ Clear notice: "AI assists with responses"
✓ Explain how data is used
4. Ignoring Deletion Requests
❌ "We can't remove you from our training data"
✓ Have mechanisms to handle deletion
✓ Or don't train on individual data
GDPR + EU AI Act
The EU AI Act (2024) adds AI-specific requirements:
GDPR: Protects personal data
AI Act: Regulates AI systems themselves
Together:
- High-risk AI needs extensive documentation
- Transparency about AI decision-making
- Human oversight requirements
- Specific rules for generative AI
AI Act Risk Categories
Unacceptable risk: Banned (social scoring, etc.)
High risk: Strict requirements (HR, credit, etc.)
Limited risk: Transparency requirements
Minimal risk: No special requirements
Compliance Checklist
Before Deploying AI
□ Data mapping: What personal data is involved?
□ Legal basis: Do you have lawful grounds?
□ DPA review: Is your AI provider compliant?
□ Privacy notice: Is AI processing disclosed?
□ DPIA: Is an impact assessment needed?
During Operation
□ Access controls: Who can see AI outputs?
□ Retention limits: How long is data kept?
□ Subject rights: Can users exercise rights?
□ Monitoring: Are you tracking compliance?
□ Incident response: What if there's a breach?
Documentation
□ Processing records: What AI processes what?
□ Consent records: When and how obtained?
□ Impact assessments: Risks identified and mitigated?
□ Training: Is staff GDPR-aware?
□ Audit trail: Can you demonstrate compliance?
Key Takeaways
- →GDPR fully applies to AI processing personal data
- →Need legal basis for training/processing
- →Purpose limitation: Can't repurpose data without consent
- →Transparency: Tell users about AI involvement
- →Data subject rights must be honored for AI too
Ready to Deploy AI Compliantly?
This article covered the what and why of GDPR for AI. But navigating the full regulatory landscape requires understanding the complete compliance framework.
In our Module 8 — Ethics, Security & Compliance, you'll learn:
- →Complete GDPR compliance for AI
- →EU AI Act requirements
- →Privacy-preserving AI techniques
- →Documentation and audit trails
- →International data transfer rules
Module 8 — Ethics, Security & Compliance
Navigate AI risks, prompt injection, and responsible usage.