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9 of 58 lessons about Accounts Show all lessons

Identity, passwords and access

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

6 lessons

  1. Multi-factor authentication: what it is and where to start A password plus a second proof that it is really you. The types, which are strongest, and the accounts to protect first. Beginner 2 min read
  2. 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
  3. What is a password manager? A password manager creates, stores and fills in a different password for every account. What it does, how to protect it, and how to start. Beginner 3 min read
  4. What is a passkey? A passkey signs you in with your fingerprint, face or PIN, with no password to type. How it works, where it is kept, and what happens if you lose the phone. Beginner 3 min read
  5. 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
  6. What is single sign-on (SSO)? Single sign-on lets staff sign in once and open every work app. How it works, what it gives a business, and the one account you then have to protect. Beginner 3 min read

Data security and encryption

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

2 of 8 lessons shown

  1. What is hashing? Hashing turns any data into a short fingerprint that cannot be turned back. How it works, and why passwords should be stored this way. Beginner 3 min read
  2. 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

Cloud computing

What the cloud is and how it works: service models, virtual machines, containers and serverless.

1 of 7 lessons shown

  1. What is software as a service (SaaS)? SaaS is software the provider runs for you and you use over the internet. What the provider looks after, what stays with you, and what to ask before signing up. Beginner 3 min read

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