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passwords

Last Week on My Mac: Passwords and patchwork quilts

When Apple is like a community making a patchwork quilt: hope that everyone knows they’re crocheting 4-inch squares, and no one takes a sudden fancy to circles or triangles.

October 17, 2021 Macs, Technology

Biometric security and AI: dangerous partners

We can quantitate the risks of cracking conventional passwords. AI-based systems using biometrics are known to be brittle, and to have exploitable blind spots. Can we trust them in security systems?

February 2, 2018 General, Macs, Technology

Behind the Scenes: Open Directory and Kerberos

These services don’t often appear in the limelight, but the recent vulnerability in High Sierra reminds us how important they still are.

December 1, 2017 Macs, Technology

I can’t log in: what to do when you forget your password, or its doesn’t work

You suddenly can’t remember your password, or your Mac won’t accept what you think is your password. What do you do next?

June 30, 2017 Macs, Technology

How does your keychain work?

Authentication dialogs to permit access to your keychain are supplied by the macOS security system, and follow a strict pattern.

April 3, 2017 Macs, Technology

Tackling keychain problems in Terminal

Sometimes resorting to Terminal can be the best and simplest way to fix a keychain problem.

January 12, 2017 Macs, Technology

Securing your router: keeping intruders out

T T Read More

Thousands of TalkTalk customers, and those of ISPs, have had their routers compromised. How should you protect yourself?

December 9, 2016 Macs, Technology

How to repair your keychain by making a fresh one

T T Read More

OS X used to provide a keychain first aid feature. Now this has gone, this is the only way that you can try to repair a defective keychain: create a new one.

December 8, 2016 Macs, Technology

Why do I have to keep entering my keychain password in Sierra?

T T Read More

When the password used to log in and that to unlock your login keychain become different, you may be asked to keep entering your keychain password. Here’s how to fix this, and more.

November 3, 2016 Macs, Technology

Firmware passwords: a mixed blessing

Coupled with FileVault’s whole disk encryption, this can stop others from accessing your data. But there are disadvantages too.

July 1, 2016 Macs, Technology

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