Every time you use Claude or visit Anthropic's website, your approximate location (from your IP address), device type, browser, and unique device identifiers are automatically collected without any action on your part.
Anthropic automatically collects your device advertising identifiers, probabilistic identifiers, IP-derived location, and browsing history within its services every time you use Claude, building a technical profile of your usage patterns that persists across sessions regardless of whether you are logged in.
Cross-platform context
See how other platforms handle Automated Collection of Device and Location Data and similar clauses.
Compare across platforms →The collection of probabilistic identifiers and advertising identifiers alongside IP-derived location data represents a broader tracking profile than many users expect from an AI assistant service, and this data can be used to recognize and track you across sessions.
1. REGULATORY FRAMEWORK: GDPR Art. 6(1)(f) (legitimate interests) is the likely basis for technical data collection; Art. 25 (data protection by design) requires minimisation of identifiers collected. The EU ePrivacy Directive (2002/58/EC, as amended) governs cookie and device identifier collection in the EU/EEA. CCPA §1798.140(o) defines 'personal information' broadly to include device identifiers and IP addresses. Illinois BIPA (740 ILCS 14) could be implicated if biometric-adjacent identifiers are collected. FTC Act Section 5 standards on unfair/deceptive tracking apply. The collection of advertising identifiers specifically implicates Google and Apple platform policies on tracking. 2.
Compliance intelligence locked
Regulatory citations, enforcement risk, and due diligence action items.
Watcher: regulatory citations. Professional: full compliance memo.