Could malicious backdoors be hiding in your code, that otherwise appears perfectly clean to the human eye and text editors alike? A security researcher has shed light on how invisible characters ...

A malicious package in the Node Package Manager index uses invisible Unicode characters to hide malicious code and Google Calendar links to host the URL for the command-and-control location.

The Unicode standard recognizes code points within PUAs as legitimate Unicode character codes, but does not assign them any (abstract) character.