Apple has pushed out an update to fix a major security hole in its Mac operating system, admitting it “stumbled” with its latest software.
The flaw, revealed on Tuesday, made it possible to access a Mac without a password, and also have access to powerful administrator rights.
The latest version of MacOS will automatically download the update.
“We greatly regret this error and we apologise to all Mac users,” the firm said.
“When our security engineers became aware of the issue Tuesday afternoon, we immediately began working on an update that closes the security hole.
“This morning, as of 8am PT, the update is available for download, and starting later today it will be automatically installed on all systems running the latest version (10.13.1) of MacOS High Sierra.”
It is only second time Apple has forcibly updated users’ machines and comes in response to widespread concern that millions of Mac computers were at risk.
Users running older versions of MacOS will see a notification prompting an upgrade.
“Security is a top priority for every Apple product,” the company said.
“And regrettably we stumbled with this release of MacOS.”
It added: “Our customers deserve better. We are auditing our development processes to help prevent this from happening again.”