Show HN: Ethereum token trading front-run, in 150 lines of Python Posted by loken17 on Tuesday October 10, 2017 @12:40PM from the show-hn dept. https://hackernoon.com/front-running-bancor-in-150-lines-of-python-with-ethereum-api-d5e2bfd0d798 ( 1 comment | 7 points | on HN )
The attacker watches the mempool for rancor txs, and creates higher fee rancor txs to frontrun.
I think miners could monopolize this exploit, since they ultimately can order the txs however they like.