Something interesting I learned about ERC-20 coins

When you have an ERC-20 coin such as USDC, SHIB or LINK, the coin never really gets transferred to your address. Unlike ETH, that actually moves between addresses, ERC-20 are just mappings inside contracts. These coins' contracts each have a variable that maps addresses to balances. When you send USDC, you're just modifying that variable, decreasing your amount and increasing someone else's amount.

Your ERC-20 balance is just an entry in someone's hash table. So when you see on Etherscan that you received billions of a random coin, ignore it because someone is probably trying to direct you to a website and scam you.