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Glossary

What counts as personal data

More things than you would think, which is why who can see them matters.

Updated on 13/08/2026

Personal data

Any information that allows a specific person to be identified, directly or by combining it with something else. Not only their name and ID number.

The list is longer than people assume, and it is the reason that inside a platform like this you have to think about who sees what.

Things that count and get forgotten

ItemPersonal data?
Name, identity documentYes, obviously
Work email and phoneYes
Bank account numberYes
A vehicle registrationYes, if it leads to the person
A worker's training certificateYes, it is in their name
A company's tax numberNo, that belongs to the company

Important

Health data, data about minors and data on convictions carry heightened protection. If you will handle them — a medical check, training for a minor on placement — do not treat it as just another document: decide expressly who may see it.

The rule that settles most of it

Ask for the minimum you need for what you are doing, keep it as long as necessary and no longer, and let only the people who must see it see it. That covers most day-to-day situations.

Watch out

This is not legal advice. The specifics of your situation come from your adviser or data protection officer.

Can I ask a supplier for an ID document?

If you need it for what you are doing, yes. If not, better not to hold it.

What about a copy of a driving licence?

Only if the role or service requires it.

Does keeping less leave me less covered?

No. Keeping what you do not need is risk with no upside.

A real case

The situation

A company keeps ID copies for every candidate it interviews.

What you do

  1. Decides to keep only those of people who join
  2. Applies the rule to the existing backlog

What you get

It stops holding hundreds of identity documents it had no reason to hold.

The situation

An identity document is stored without knowing why it is needed.

What you do

  1. Reviews what justifies keeping it and for how long

What you get

What is kept has a reason and a period.

The situation

The whole team can open documentation containing sensitive data.

What you do

  1. Limits who sees what according to their work

What you get

Access stops being a matter of general trust.

The situation

A whole file is shared when only one document was needed.

What you do

  1. Shares only what is relevant

What you get

What was asked for is handed over, and nothing more.

The situation

A candidate asks for their data to be deleted.

What you do

  1. Locates where it sits and acts on the policy

What you get

The request is handled without searching everywhere.

The situation

Nobody knows how long each document type is kept.

What you do

  1. Sets a retention policy and applies it

What you get

The decision is taken once and stops being improvised.

This article answers

  • what is personal data gdpr
  • is an id number personal data
  • can i store an employee's phone number
  • suppliers' personal data