📌 Token Approvals: Why an Old "Approve" Can Drain Your Wallet Today
Main Points
⏺ Many dApps ask for permission to spend your tokens before you swap or deposit
⏺ By default, that permission is often unlimited and never expires
⏺ This post explains why old approvals are risky and how to clean them up
1️⃣ Core Idea — An approval lets a smart contract move a specific token from your wallet without asking you again.
2️⃣ Why Unlimited — Apps request "infinite" allowances so you don't pay gas for a new approval every time you trade.
3️⃣ Example — You approved a DEX a year ago. The contract gets exploited today, and the attacker uses your old approval to pull your tokens.
4️⃣ Risk Surface — Phishing sites often ask for an approval instead of a transfer, because many users don't read what they sign.
5️⃣ Practical Rule — Approve only the amount you need, review your allowances regularly with a revoke tool, and remove the ones you no longer use.
Final Thoughts
Your wallet balance is only as safe as the permissions you've handed out. A few minutes of cleanup can close doors you forgot were open.
Subscribe to Crypto Noob for more security insights!
#cryptouniverseofficial to
#Security