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Previous episode Password strength: what really makes a password hard to guess

How passwords and logins work: why a website should not know your password

Credential stuffing: why a leak at one website is a danger for your other accounts

You joined a small website once and forgot it. Now that website leaks its passwords. You used the same password on other websites. So those accounts are in danger too, and the thief does not even have to guess.

  1. 1 You use your new gym passphrase on a small recipe website too. That website was not as careful as the gym: it kept passwords in plain text. This week, its list leaks.the recipe websiterecipes: membersemailpasswordyou@mail.exampleladder cactus velvet orbitana@mail.exampleqwertyben@mail.exampledragon1Rono's laptop

    You use your new gym passphrase on a small recipe website too. That website was not as careful as the gym: it kept passwords in plain text. This week, its list leaks.

  2. 2 Rono reads your email and your passphrase, with no guessing at all. The recipe website itself holds nothing he wants.Ronoyou@mail.exampleladder cactusvelvet orbitNo guessingat all.

    Rono reads your email and your passphrase, with no guessing at all. The recipe website itself holds nothing he wants.

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Next episode Two-factor authentication: what a password alone cannot prove

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