Here’s why your Mac blocked that Terminal command you pasted

Macworld
When macOS 26.4 Tahoe was released in March, Apple introduced an additional safeguard against malware distribution: if a user pastes lines of code into the Terminal, a warning appears, signaling that the paste was blocked because the copied code could contain malware. The warning gives the user the option to continue with the pasted command or to stop it before it executes.This is a new behavior in macOS, and you may have noticed it if you recently used the Terminal. In a support docume