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Wallets & security

ERC-20 allowances

An allowance lets a spender transfer tokens for an owner.

Reference note · Sources below

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In this article
  1. Overview
  2. Why it matters
  3. What to check
  4. Sources

Overview

An allowance lets a spender transfer tokens for an owner.

Why it matters

Unlimited approvals reduce prompts but enlarge compromise impact.

What to check

List and revoke stale spenders.

Sources

Related reading

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