Malware has no trouble hiding and bypassing macOS user warnings

In a presentation at the Def Con hacker convention in Las Vegas over the weekend, Wardle said it was trivial for a local attacker or malware to bypass many security mechanisms by targeting them at the user interface level.

“The ability to synthetically interact with a myriad of security prompts allows you to perform a lot of malicious actions,” Wardle told Ars. “Many of Apple's privacy and security-in-depth protections can be trivially bypassed.”