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Apple s macOS Gatekeeper asleep on the job: Exploited flaw put users at grave risk of malware infection
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A software bug let malware bypass macOS security defenses
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A software bug let malware bypass macOS’ security defenses
Old malware, new tricks
Apple has spent years reinforcing macOS with new security features to make it tougher for malware to break in. But a newly discovered vulnerability broke through most of macOS’ newer security protections with a double-click of a malicious app, a feat not meant to be allowed under Apple’s watch.
Worse, evidence shows a notorious family of Mac malware had been exploiting this vulnerability for months before it was subsequently patched by Apple this week.
Over the years, Macs have adapted to catch the most common types of malware by putting technical obstacles in their way. Indeed, macOS flags potentially malicious apps masquerading as documents that have been downloaded from the internet. And if macOS hasn’t reviewed the app a process Apple calls notarization or if it doesn’t recognize its developer, the app won’t be allowed to run without user intervention.
Bug that let malicious files slip past defenses now fixed in Big Sur 11.3 Share
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Apple has released macOS 11.3, fixing a serious flaw that allowed an attacker to sneak malicious files past the operating system s Gatekeeper security mechanism.
Gatekeeper is one of the primary macOS defenses against the installation of malware, explained Cedric Owens, the security researcher who found the bug, in a message to
The Register.
The vulnerability, he said, lets an attacker rig a malicious file so it won t get blocked by Gatekeeper when a user tries to open it. He considers it to be one of the most dangerous he s encountered on recent versions of macOS.
Update Your Mac Now: The Worst Hack In Years Hits Apple Computers
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