| They send a hash of the binaries/libraries, and generate a cache locally so it's not sent again. That helps stop you from running tampered-with binaries and frameworks. No user-personal data is sent. There is no evidence at all that they are trying to ensure you can only run things from the App Store - I run a whole bunch of non-app-store binaries every single day. To make that claim is baseless and makes me de-rate the rest of what you write. There is always a trade-off between privacy and security. This still falls well under the Google/Android/Chrome level, or indeed the Microsoft/Windows level with its targeted ads, IMHO. Choose your poison, but this works for me. |
My understanding is that they keep a local file with known malware signatures, just like the malware scanners on every other platform.
> macOS includes built-in antivirus technology called XProtect for the signature-based detection and removal of malware. The system uses YARA signatures, a tool used to conduct signature-based detection of malware, which Apple updates regularly
https://support.apple.com/guide/security/protecting-against-...