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 document posted earlier this week, Apple explains why it implemented the warning. It appears only if you do not regularly use the Terminal and copied a command from email, chat, or another source. Two types of warnings may appear. The first is “Potential malware detected,” where macOS explains that it has detected a copied command and warns the user against executing it unless they are certain that the command comes from a reliable source. The second warning blocks the paste without a