Password manager
Also called password managers
An app that creates, stores and fills a different strong password for every site, and won't fill them on a fake one.
Nobody can remember a different strong password for 100 sites, so people reuse a few, and one breach opens many doors. A password manager removes the memory problem: it makes long random passwords, keeps them encrypted behind one strong password or your face or fingerprint, and fills them in for you.
It has a second job that matters more now. A manager remembers the exact site each password belongs to, so on a lookalike page it stays silent. AI has made fake pages and the messages that lead to them harder to spot by eye; 1Password said as much when it added a warning for people who paste a password into a page it doesn't recognise.
Protect the manager itself with the strongest sign-in it offers, ideally a passkey.
For example
You click a link to "your bank", and your password manager offers nothing to fill, because the address isn't your bank's.
Put it to use
Where you'll meet password manager in ChatGPT, Gemini and Claude, how to use it there, and the mix-up most people make.
Daily Bytes Plus is in the Android app.