Objective-See

Objective-See is an independent macOS security research project and software vendor founded and maintained by macOS security researcher Patrick Wardle. The project publishes a suite of free and open-source tools designed to detect and mitigate malware and suspicious behavior on macOS, and it serves as a widely-cited source of macOS security research, blog posts, whitepapers, and conference presentations. Objective-See tools focus on practical endpoint protection for macOS users, with an emphasis on transparency, auditability, and community-driven improvements.

The portfolio includes utilities such as LuLu (an open-source outgoing firewall and network monitor), KnockKnock (persistence scanning), BlockBlock (persistent installer detection), RansomWhere? (ransomware detection heuristics), and many others. Objective-See is known for publishing both production-ready tools and research artifacts, as well as detailed write-ups of macOS threats, exploitation techniques, and defensive guidance...