Bluesky Files Trademark for ATProto Protocol

Bluesky announced it is seeking a trademark for ATProto. The filing aims to protect the protocol's branding. ATProto underlies Bluesky's social networking service. Securing a trademark could help prevent unauthorized use. The trademark filing was shared on the ATProto blog. No further details about the trademark scope were disclosed. Industry observers note potential effects on third‑party developers. The community will monitor any impact on open‑source adoption.