> For the complete documentation index, see [llms.txt](https://doc.dastra.eu/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.dastra.eu/en/useful-reminders.md).

# USEFUL REMINDERS

- [What is GDPR ?](https://doc.dastra.eu/en/useful-reminders/introduction-to-privacy.md)
- [GDPR key concepts](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts.md): Summary of key concepts of the General Data Protection Regulation.
- [Personal data](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/personal-data.md): Learn what personal data is.
- [Record of processing activities (ROPA)](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/record-of-processing-activities.md): Learn what a record of processing activities is.
- [Privacy impact assessment](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/impact-assessment.md): Learn what a privacy impact assessment is.
- [Data retention period](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/data-retention-period.md): Learn what data retention periods are.
- [Data Subject Rights (DSR)](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/data-subject-rights.md): Find out about the different rights introduced by the GDPR.
- [Privacy by design and by default](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/privacy-by-design.md): Learn what privacy by design and privacy by default mean and how to apply them in Dastra.
- [Security measures](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/security-measures.md): Learn about security measures under the GDPR.
- [Data breach notifications](https://doc.dastra.eu/en/useful-reminders/gdpr-key-concepts/data-breaches.md): Learn how to manage data breach notifications.
- [Risk management](https://doc.dastra.eu/en/useful-reminders/risk-management.md): Summary of key risk management concepts
- [Definition of risks](https://doc.dastra.eu/en/useful-reminders/risk-management/definition-of-risks.md): Some useful reminders about the definition of risk.
- [Risk assessment](https://doc.dastra.eu/en/useful-reminders/risk-management/risk-assessment.md): Learn how to assess the level of a risk with Dastra.
- [Vendor risk management](https://doc.dastra.eu/en/useful-reminders/risk-management/processor-risks.md): Learn how to manage the risks of subcontracting with the GDPR.


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