MacDefender Changes Name Again: Now MacShield
Yet another variant of the MacDefender fake antivirus with a new name: MacShield.

Every time you open a website, stream a video, send an email, or connect to Wi-Fi, your device relies on an IP address. You rarely see it, and most of the time you probably do not think about it. But it plays a quiet, important role in how the internet works. Your IP address helps...

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Executive Summary In March 2026, Intego Antivirus Labs investigated a macOS malware campaign delivering the OSX/Amos stealer. During analysis, the infection chain led from stripped Mach-O binaries and heavily obfuscated shell scripts to an unusual final payload that appeared...
Yet another variant of the MacDefender fake antivirus with a new name: MacShield.
Apple has updated its XProtect malware definitions for the latest variant of the MacDefender fake antivirus.
Just a few hours after Apple released a security update to block the MacDefender fake antivirus, a new variant...
A bug in Apple's latest security update may lead to security settings different from what users expect.
Apple has issued a security update for Mac OS X 10.6 to protect against the download and installation of...
Are there fake comments, on blogs and websites, about the recent fake antiviruses targeting Mac users?
Investigations suggest that the people behind the recent spate of fake antiviruses targeting Mac users are the same who...
Intego has discovered a new version of the Mac Defender fake antivirus that does not require that a user...
Apple has published a technical note explaining how to remove the MacDefender fake antivirus, and promises a security update...
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