Experts say we should use passkeys, but can a smartphone PIN really be safer than a password?

The long-running series in which readers answer other readers’ questions explores a topical issue of personal cybersecurity Readers reply: If an alien asked you: ‘What is music?’ what would you play for them? I’ve been struggling to get my head around the idea that a passkey, which can be a PIN on your phone, or facial recognition, can be safer than using a complicated password, and two factor authentication. I get that having something unique to your device, not stored on a company’s serve...