GDPR: Legitimate interest
What does the term mean
Legal title to the processing of personal data, if the processing is necessary and the rights of the data subject do not prevail.
Legitimate interest is a common legal basis for camera systems protecting property and people's safety. It does not mean cameras can be placed anywhere without limits; necessity and proportionality must be demonstrated.
What must be defensible
- Purpose: specific security reason (not “just in case”).
- Nezbytnost: that the same goal cannot be achieved less invasively.
- Adequacy: that the impact on privacy is not exaggerated.
In practice it is documented via balance test.
Revize a zdroje
Verified sources for the term
Updated May 26, 2026
Practical meaning
How GDPR: Legitimate interest applies to a real service
It makes sense mainly when it results in a specific procedure for an object, an event or a team on site.
When is the term resolved
GDPR: Legitimate interest is mainly handled in practice when checking the contract, internal rules, cameras, records of people, the powers of the worker or the responsibility of the contracting authority.
Common mistakes in practice
The risk is to rely on oral interpretation without an up-to-date procedure, record and verification of who is responsible for a specific decision.
What to do in practice
If the term applies to your real operation, it connects to Site security. That is where we deal with the specific space, scope, responsibility and next step before deployment.
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