anonymisation

Anonymisation is the process of removing or obscuring identifying information from data so that individuals cannot be recognized.

This British spelling (anonymization in American English) appears frequently in discussions of privacy, data protection, and research ethics.

Organizations anonymise datasets before sharing them publicly or with researchers.

The hospital's anonymisation procedures ensured patient records couldn't be traced back to individuals.

Unlike pseudonymisation, which substitutes identifiers, true anonymisation is meant to be irreversible.