beginner · 20 COMPLETE LESSONS

Explore safely

Begin with “Stay safe while exploring” and work toward “Safety scenario challenge”. Each available lesson includes a visual explanation and a quick knowledge check.

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Read in order or choose a topic below. Completion marks stay in this browser. All 20 lessons in this track are available.

  1. 01

    Stay safe while exploring

    Build good habits before you connect a real wallet.

    6 MIN READ
  2. 02

    Spot a fake support message

    A helpful tone is not proof of authority.

    3 MIN READ
  3. 03

    Recognize a recovery phrase scam

    A request for the master backup is a request for control.

    3 MIN READ
  4. 04

    Address poisoning explained

    A lookalike address can be planted where you expect useful history.

    3 MIN READ
  5. 05

    Clipboard replacement attacks

    Check the destination after pasting, not only before copying.

    3 MIN READ
  6. 06

    Read a domain carefully

    A familiar brand name inside a URL is not enough.

    3 MIN READ
  7. 07

    Understand token approvals

    An allowance lets a specified spender request token movement under contract rules.

    3 MIN READ
  8. 08

    Unlimited allowances explained

    A very large spending permission can expose more than the next intended payment.

    3 MIN READ
  9. 09

    What is a malicious signature?

    A valid signature can authorize an action the signer did not intend.

    3 MIN READ
  10. 10

    Why an airdrop can be bait

    An unsolicited asset can be used to lure someone into a separate harmful action.

    3 MIN READ
  11. 11

    What a testnet is for

    A separate network lets people practice protocol and application behavior.

    3 MIN READ
  12. 12

    Test ETH versus real ETH

    The same unit names do not make separate networks’ assets interchangeable.

    3 MIN READ
  13. 13

    How to read a faucet warning

    Separate a legitimate service condition from a request for secret access.

    3 MIN READ
  14. 14

    Verify an address through two channels

    Independent confirmation can catch a changed or impersonated destination.

    3 MIN READ
  15. 15

    Why transactions are usually irreversible

    Accepted state changes do not have a universal user-operated undo button.

    3 MIN READ
  16. 16

    What a block explorer label does not prove

    Human-friendly tags are interpretations layered onto network data.

    3 MIN READ
  17. 17

    Hardware wallets still need careful review

    Protecting a key does not automatically explain a request’s meaning.

    3 MIN READ
  18. 18

    Read-only practice habits

    Learn byte shapes and public data before authorizing real actions.

    3 MIN READ
  19. 19

    Prepare a personal transaction checklist

    A short review can keep different kinds of evidence from being mixed up.

    3 MIN READ
  20. 20

    Safety scenario challenge

    Practice identifying what a request actually grants.

    3 MIN READ

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