Enlarge / The file names in this screenshot have been redacted to protect the vulnerable. Since its introduction in 2012, an OS X feature known as Gatekeeper has gone a long way to protecting the Macs of security novices and experts alike. Not only does it help neutralize social engineering attacks that trick less experienced users into installing trojans, code-signing requirements ensure even sea
![Drop-dead simple exploit completely bypasses Mac’s malware Gatekeeper](https://cdn-ak-scissors.b.st-hatena.com/image/square/5ef382fa72960c8d96944765b296824b89988068/height=288;version=1;width=512/https%3A%2F%2Fcdn.arstechnica.net%2Fwp-content%2Fuploads%2F2015%2F09%2FGatekeeper-bypass-hack-640x215.png)