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3 of 58 lessons about Accounts, intermediate level Show all lessons

Identity, passwords and access

Proving who is signing in: multi-factor authentication, passkeys, password managers and single sign-on.

2 of 6 lessons shown

  1. How multi-factor authentication works What happens behind a text code, an authenticator app, an approval prompt and a passkey, and why only some of them stop a fake sign-in page. Intermediate 3 min read
  2. Passwords vs passkeys: what’s the difference? A password is a secret you share with a website. A passkey shares nothing. How the two compare, and how a business moves from one to the other. Intermediate 3 min read

Data security and encryption

How data is kept unreadable to anyone who should not see it: encryption, certificates, TLS and hashing.

1 of 8 lessons shown

  1. Encryption vs hashing: what’s the difference? Encryption can be reversed with a key. Hashing cannot be reversed at all. What each is for, and which one should protect what. Intermediate 3 min read

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