Password manager.
In plain English
A password manager is an app that generates, stores, and fills in a strong, unique password for each of your accounts, locked behind a single master password you remember. It solves the core problem behind many account takeovers: reusing the same password across sites, so that one breach exposes many accounts. Because the manager remembers long random passwords for you, every account can have its own, and many managers also flag reused or breached passwords. Good practice is a strong master password plus multi-factor authentication on the manager itself, so the one key that opens everything is well protected.
01Why it matters
Reusing passwords means one leaked site can unlock your bank and email, so a password manager, by making every password unique and strong, removes one of the most common paths to account takeover.
02The math, step by step
Instead of reusing one password everywhere, the manager gives each site its own long random one and fills them in for you. If a store you use is breached, that leaked password opens nothing else, because it was never reused. You only memorize the master password, ideally protected with MFA.
03What this is NOT
It is not the same as saved browser passwords, though it overlaps. A dedicated password manager adds strong generation, cross-device syncing, breach alerts, and its own protected vault, offering more than the basic save-password prompt built into a browser.
04Receipts
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