Web3 Security: Protecting Seed Phrases and Token Permissions
Self-custody gives users control over assets while requiring them to protect recovery credentials and understand permissions. Recognizing requests for seed phrases, unlimited token permissions, and manufactured urgency is fundamental to safe use.
A Seed Phrase Is a Control Credential
Self-custody differs from an account whose password can be reset by a platform because a Secret Recovery Phrase controls access to the wallet and its assets. Any message asking for the phrase should be treated with extreme caution, even if the sender claims to be customer support or an acquaintance. The lesson repeatedly warns users never to share a seed phrase and reminds them that they are responsible for safeguarding recovery credentials.
Verify Application Permissions
After connecting to a decentralized application, a token approval may allow it to use a specified amount of tokens or NFTs. Granting unlimited permission to a malicious application could allow assets to be transferred away. Before signing, users should understand who is making the request, its scope, and its purpose. They should stop when an application is suspicious or a request is unclear instead of agreeing under pressure.
Recognize Manipulation and Add Protection
Scammers may impersonate projects or individuals and create pressure with deadlines, airdrops, or exaggerated returns. Requests for money from strangers and overly enthusiastic demands to participate should also raise concern. A hardware wallet can isolate Private Key signing on a separate device, but users must still verify what they sign and should not treat hardware as a reason to ignore authorization risk.
Original Tutorial
https://learn.metamask.io/zh-CN/lessons/security-in-web3
Mark it complete when you understand it.
Opening a lesson does not complete it automatically. You can change its status at any time.