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malware

How XProtect’s detection rules have changed 2019-25

Over the last 6 years, XProtect’s Yara rules for detection of malware have increased by a factor of 4, and they now take over 22 times as much space. Here are the numbers and charts.

August 15, 2025 Macs, Technology

Apple has just released updates to XProtect and XProtect Remediator

Apple has just released updates to XProtect for all supported versions of macOS, bringing it to version 5309, […]

August 5, 2025 Macs, Technology, Updates

What happened to XProtect this week?

A slew of new rules to detect novel malware, four changes to behavioural detection. This has been an unusual week for security data updates.

July 11, 2025 Macs, Technology

Apple has just released major updates to XProtect and XProtect Remediator

Apple has just released updates to XProtect for all supported versions of macOS, bringing it to version 5304, […]

July 8, 2025 Macs, Technology, Updates

What to expect of XProtects?

Classic XProtect, XProtect Remediator, and XProtect behavioural with Bastion rules – a rundown on developments over the last year and where they’re going next.

May 23, 2025 General, Macs, Technology

XProtect Remediator has changed its behaviour

Since the update to XProtect Remediator version 151, many have seen warnings of a plugin being cancelled. This explains how that happens, and what you can do about it.

March 11, 2025 Macs, Technology

Last Week on My Mac: Increasingly insecure in Sequoia

XProtect’s updates are now less timely and reliable than they were in previous versions of macOS, leaving some Macs not updated for over 48 hours after release of a new version.

March 9, 2025 Macs, Technology

Apple has just released updates to XProtect and XProtect Remediator

Apple has just released updates to XProtect for all supported versions of macOS, bringing it to version 5289, […]

March 4, 2025 Macs, Technology, Updates

Last Week on My Mac: What did 15.3.1 fix?

Important security fixes, but no published CVE entries, according to Apple. But digging deeper was also unhelpful. Could it be GoFetch, or SLAP and FLOP?

February 16, 2025 Macs, Technology

Why XProtect Remediator scans now take longer

Scans used to take just a few minutes, but even on a fast M4 Pro now usually take more than half an hour. What is XProtect Remediator up to?

January 3, 2025 Macs, Technology

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