The European Union's General Data Protection Regulation (GDPR) came into effect on May 25, 2018, and its impact extends far beyond Europe. Any company that processes data of EU residents must comply, regardless of where the company is based.
Key Principles
GDPR is built on several fundamental principles:
- Lawfulness and transparency — Data processing must have a legal basis, and individuals must be informed
- Purpose limitation — Data can only be collected for specified, explicit purposes
- Data minimization — Only collect data that is necessary for the stated purpose
- Accuracy — Personal data must be kept accurate and up to date
- Storage limitation — Data should not be kept longer than necessary
- Integrity and confidentiality — Appropriate security measures must protect personal data
What This Means for Software Companies
Consent Management
Applications must obtain clear, affirmative consent before collecting personal data. Pre-ticked checkboxes and bundled consent are no longer acceptable. Users must be able to withdraw consent as easily as they gave it.
Data Subject Rights
Your software must support several user rights:
- Right to access — Users can request a copy of their data
- Right to rectification — Users can correct inaccurate data
- Right to erasure — The "right to be forgotten"
- Right to data portability — Users can export their data in a machine-readable format
Privacy by Design
GDPR requires that data protection is built into systems from the ground up, not bolted on after the fact. This means privacy considerations should be part of every software design decision.
Breach Notification
Data breaches must be reported to supervisory authorities within 72 hours. This requires robust monitoring systems and incident response procedures.
Practical Compliance Steps
- Audit your data — Document what personal data you collect, where it is stored, and who has access
- Update privacy policies — Ensure they are clear, comprehensive, and written in plain language
- Implement consent management — Build granular consent mechanisms into your applications
- Enable data export and deletion — Build tools for users to exercise their rights
- Encrypt sensitive data — Both at rest and in transit
- Train your team — Everyone who handles personal data should understand GDPR requirements
The Global Impact
GDPR has inspired similar legislation worldwide. Brazil's LGPD, California's CCPA, and regulations in other jurisdictions follow GDPR's lead. By building GDPR-compliant software, you are preparing for a global trend toward stricter data protection.
Compliance is not just a legal obligation — it is a competitive advantage. Users increasingly choose products and services from companies they trust with their data.



