Recently, I was following a thread about the increasing prevalence of MEV bot scams in Web3. Actually, this is a trend we really need to pay close attention to, especially considering how many have already fallen victim.

Here's how it works: scammers create a tutorial video that looks legit, then claim they can generate passive income through a smart contract that supposedly automates MEV arbitrage. Interested victims deploy the contract and transfer funds, for example 2 ETH ( roughly $4,660 with ETH's current price at $2.33K ). But then something starts to seem off.

The most sneaky part is that the scammer has pre-funded the contract with additional ETH. So when the victim checks the balance, they see the initial investment plus a "profit" that appears real. Trust and greed start to rise. This is pure psychology—people become more confident and willing to invest more.

Then what happens? When the victim tries to withdraw, malicious code appears. Instead of returning the funds, all assets are transferred to the scammer's wallet. This fake MEV bot scheme is basically a carefully planned trap.

To stay safe, here are some things you can do: first, always be skeptical of videos or tools promising high automatic returns. Second, before interacting with a smart contract, audit the code or seek help from a professional. Pay special attention to the withdraw function—that's usually where malicious code hides. Third, use transaction simulation tools like MetaMask or others before signing. If you see funds transferring to an unknown address, stop immediately.

One thing people often forget: start with a small amount first. If a bot or app asks for a large investment to "activate" or show profits, that's a big red flag.

In short, in the blockchain world, code is law. Once deployed, malicious code can be permanently embedded. Scammers keep evolving with new tactics, so we must stay updated and skeptical. Protecting your crypto isn't just about technical security, but also maintaining a critical mindset and healthy paranoia. Remember—there's no free lunch in Web3.