Google Caught Hackers Using a Mac Zero-Day Against Hong Kong Users

The hackers had set up a watering hole attack, meaning they hid malware within the legitimate websites of “a media outlet and a prominent pro-democracy labor and political group” in Hong Kong. Users who visited those websites would get hacked with an unknown vulnerability—in other words, a zero-day—and another exploit that took advantage of a previously patched vulnerability for MacOS that was used to install a backdoor on their computers, according to Hernandez. 

Apple patched the zero-day used in the campaign in an update pushed out on September 23, according to the report.