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Funkhaus Berlin

One year ago, we were attending a conference in Berlin and watching a panel discussion about the state of Ethereum. Gleb, our CTO, asked something that had been haunting him for a while:

“What prevents miners from replacing user transactions and frontrunning with their own?”

As much as it felt like an elephant in the room, the answer was: “Nothing. We can only hope that miners are honest and won’t do that.”

At the time, it wasn’t a palpable problem, but times have changed. Over the past year, the crypto sub-domain of Decentralized Finance (DeFi), has grown more popular and…


By Gleb Urvanov and Stanislav Vozarik

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Trap tokens waiting in Uniswap pools

While conducting on-chain research last night, our team was experimenting with several strategies involving front-running Ethereum transactions. During this process, a unique attack vector came across our radar. While running a test bot that was benchmarking across a few Uniswap pools, our bot mistakenly bought into a pool created just moments ago.

It was a pool that was trying to fake a token sale on Uniswap of an existing token sale campaign. The attackers had tried to mimic the CFI token, using a Fake-CFI token. …


By Peter Kris and Gleb Urvanov

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One year ago, we were attending a conference at the Technical University of Berlin and watching a panel discussion about the state of Ethereum. Gleb, our CTO, asked something that had been haunting him for a while:

“What prevents miners from replacing user transactions and frontrunning with their own?”

As much as it felt like an elephant in the room, the answer was: “Nothing. We can only hope that miners are honest and won’t do that.”

At the time, it wasn’t a palpable problem, but times have changed. Over the past year, the crypto sub-domain of Decentralized Finance (DeFi), has…

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