Identifying a device from its combination of characteristics (IP address, screen size, OS version, fonts, language) rather than a stored identifier. Fingerprinting is prohibited by Apple's App Store rules, restricted by Google's policies, and treated as tracking under most privacy laws, though it persists in various forms.
Cite this entry:
Agency Echelon. "Fingerprinting." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/fingerprinting/