Apple considered a flaw in OS X so critical that the company pushed out its first automatic OS update to patch the problem.

The security issue was first found by Google researchers last week who warned that a weakness in the network time protocol (NTP) could let hackers deliver malicious code to a user’s computer. Indeed, the U.S. government flagged the problem, and Apple advised users to update their OS X to install a fix.

However, Apple decided to go one step further and trigger the automatic OS X update, a feature it had included before but had not used until now.

“The update is seamless,” Apple spokesman Bill Evans told Reuters. “It doesn’t even require a restart.”

Source: Reuters