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Apple

Code signatures: 3 Fixing signature problems

If you have no other option and can be certain there’s no danger in doing so, you can remove a signed app’s signature. But it may not be so simple.

November 3, 2020 Macs, Technology

Last Week on My Mac: Support, dependence, control

Apple seldom posts Support Notes to guide many users to solve problems, but prefers them to access Apple Support one at a time. Why this inefficiency?

November 1, 2020 Macs, Technology

Apple has pushed an update to MRT

Apple has pushed an update today to its malware removal tool MRT, bringing it to version 1.69.3, dated […]

October 30, 2020 Macs, Technology, Updates

Code signatures: 2 How to check them

When macOS won’t let you open an app or other software because it warns that it’s (possibly) malware, here’s how to check the signatures.

October 30, 2020 Macs, Technology

Apple has pushed an update to XProtect

Apple has pushed an update today to the data files used by XProtect, bringing its version number to […]

October 29, 2020 Macs, Technology, Updates

Code signatures: 1 How they work, and stop working

The benefits of code signing for Mac users explained. How certificates are revoked, and what happens when they are. And there’s more to signatures than just the certificate.

October 28, 2020 Macs, Technology

XProtect: What do we know about it?

Where to find its data files, what each contains and does, when XProtect is called to scan software, and a list of known malware it should detect.

October 27, 2020 Macs, Technology

What happened with security updates and HP printer software?

Why many had problems, what they are exactly, what you can do about them, and how they should be prevented.

October 26, 2020 Macs, Technology

Last Week on My Mac: Are silent security updates a vulnerability?

The update to MRT 1.68 has caused problems with many Macs. Even if their cause is discovered, fixing them is usually long and complex. That silent security update is causing a denial of service.

October 25, 2020 Macs, Technology

MRT: what do we know about it?

The macOS Malware Removal Tool – what is it, where is it, what does it do and how does it run? And a curious story about its recent past, when it was used to remove non-malware.

October 23, 2020 Macs, Technology

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