Hacker Robbed by a Bot: MEV Bot Steals $7.7M From ETH Wallet Exploit

An automated bot snatched $7.7M in tokens right before a hacker could grab them, and Kelp froze the address in response.

In a bizarre twist, a hacker trying to steal crypto ended up being robbed by an automated bot. This is a story where one thief got beaten to the punch by a piece of software.

Here is what happened. Someone exploited (found a weakness and took advantage of) a crypto wallet using a custom software module connected to a Safe (a type of secure digital wallet that requires multiple approvals to move funds). The attacker was trying to steal a token called rsETH — a special crypto token linked to Ethereum (a major blockchain network).

But before the hacker could grab the loot, an MEV bot stepped in. An MEV bot (Maximal Extractable Value bot) is an automated program that constantly watches the blockchain for money-making opportunities and jumps in ahead of others. This particular bot, nicknamed Yoink, "front-ran" the attack — meaning it spotted the transaction and pushed its own transaction through first to snatch the tokens.

Key facts:

The bot captured about $7.7 million worth of rsETH tokens
Yoink sent roughly 18.93 ETH (around $46,000) to a "block builder" — a service that helps process transactions on the blockchain
The exploit targeted a custom module linked to the victim's Safe wallet

Kelp, the company behind the rsETH token, quickly reacted. It placed the address that received the funds under a 24-hour pause, temporarily stopping the tokens from being moved anywhere.

Kelp reassured users that this was a precautionary wallet-level measure only. The company said:

Its own contracts (the automated code running the system) are safe
rsETH remains fully backed (meaning each token is still supported by real value)
Minting, withdrawals, and integrations are all working normally

Kelp said it is working with security experts to investigate the incident.

The takeaway: This unusual case shows how the crypto world can be a chaotic place, where even hackers aren't safe from getting outmaneuvered by faster automated bots. It also highlights how a project like Kelp can quickly freeze suspicious addresses to protect users.

This is an AI-generated summary. Read the original article at: https://cointelegraph.com/news/mev-bot-intercepts-77m-in-rseth-from-ethereum-wallet-exploit?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound