X/Twitter collects extensive user data including biometrics and behavioral patterns with broad third-party sharing permissions. While transparency and retention policies are reasonable, unfair ToS terms and expansive data use for AI training significantly undermine user protections.
This score is based on automated analysis of Twitter / X's publicly available privacy policy, terms of service, security headers, and breach history.
Scores are derived from AI analysis and Mozilla Observatory security scans. Five core privacy categories are weighted and combined, with terms of service and transparency applied as quality modifiers.