Business & Economics

Unsealed Filings Expose Meta’s 2020 ‘Project Mercury’ and Other Concealed Teen-Safety Risks

Newly unsealed Nov 22-23, 2025 court documents in a U.S. school-district lawsuit show Meta killed a 2020 internal study proving a one-week break from Facebook/Instagram lowers users’ depression and anxiety, while executives simultaneously told Congress they lacked such data.

By Tomás Rydell

Focusing Facts

  1. Project Mercury (2020), run with Nielsen, found causal drops in depression, anxiety, loneliness and social-comparison after seven days off Facebook/Instagram.
  2. Former Instagram safety chief testified Meta’s policy allowed 16 separate sex-trafficking violations before an account faced removal (a “17×” strike threshold).
  3. Northern District of California court set a hearing for Jan 26 2026 on Meta’s motion to strike the internal documents.

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