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Vol. 1 · Ed. 2026
CyberGlossary
Entry № 286

Data Subject Access Request (DSAR)

What is Data Subject Access Request (DSAR)?

Data Subject Access Request (DSAR)A formal request from an individual to a controller asking which of their personal data is being processed and obtaining a copy of it, as guaranteed by GDPR Article 15 and similar laws.


A Data Subject Access Request (DSAR) is the procedure through which an individual exercises the right of access under GDPR Article 15, UK DPA 2018, CCPA Section 1798.110, LGPD Article 18, and other regimes. The controller must confirm whether personal data is processed, provide a copy, and disclose purposes, recipients, retention, sources, automated decision-making, and international transfers. Responses are typically due within one month for GDPR and 45 days for CCPA, free of charge for the first request. Operationally, organizations identify the requester, search structured and unstructured systems, redact third-party data, log decisions, and may extend timelines for complex cases. Repeated, manifestly unfounded, or excessive requests can be refused or charged a reasonable fee.

Examples

  1. 01

    A former employee asks for all personal data held in HRIS, email backups, and CCTV footage.

  2. 02

    A customer requests a portable export of their order history under GDPR Article 20 alongside a DSAR.

Frequently asked questions

What is Data Subject Access Request (DSAR)?

A formal request from an individual to a controller asking which of their personal data is being processed and obtaining a copy of it, as guaranteed by GDPR Article 15 and similar laws. It belongs to the Privacy & Data Protection category of cybersecurity.

What does Data Subject Access Request (DSAR) mean?

A formal request from an individual to a controller asking which of their personal data is being processed and obtaining a copy of it, as guaranteed by GDPR Article 15 and similar laws.

How does Data Subject Access Request (DSAR) work?

A Data Subject Access Request (DSAR) is the procedure through which an individual exercises the right of access under GDPR Article 15, UK DPA 2018, CCPA Section 1798.110, LGPD Article 18, and other regimes. The controller must confirm whether personal data is processed, provide a copy, and disclose purposes, recipients, retention, sources, automated decision-making, and international transfers. Responses are typically due within one month for GDPR and 45 days for CCPA, free of charge for the first request. Operationally, organizations identify the requester, search structured and unstructured systems, redact third-party data, log decisions, and may extend timelines for complex cases. Repeated, manifestly unfounded, or excessive requests can be refused or charged a reasonable fee.

How do you defend against Data Subject Access Request (DSAR)?

Defences for Data Subject Access Request (DSAR) typically combine technical controls and operational practices, as detailed in the full definition above.

What are other names for Data Subject Access Request (DSAR)?

Common alternative names include: DSAR, Subject Access Request, Right of Access.

Related terms