In DeFi, you’re not always eating the sandwich, sometimes you are the sandwich.

Crypto trade front running is hardly news. So why bring it up again? There have been rises in this practice in 2025 so it’s worth taking another look. More importantly, there’s somewhat recent changes giving us options to cut down the risk. Part of the latest rise might be due to the latest crypto bull cycle, or new blockchain ecosystems. It’s also plausible that some are using newer AI tools to level up their bot game. In any case, I’ll cover the core issue for those not already familiar, then lay out some of the relatively new tools we can use. Some have been around awhile, but only recently started showing up in user-friendly wallets and services.
This problem of front running trades shouldn’t exist at all in a supposedly permissionless and trustless environment. Let’s remember part of why crypto was invented. There’s a lot about traditional finance (TradFi) that’s opaque to retail traders. No one seems to pay much attention until something breaks. We can infer the regulators don’t, can’t, or won’t do much to stop this. At least they haven’t so far, beyond a handful of show trials and fines that are small enough compared to gains that they’re just a cost of doing business. Some might argue front running in crypto is not even a flaw in the “trustless” design (which relies on code and consensus) but is just a tradeoff of openness, which happens to enable attacks without breaking rules. That may be true from a purist standpoint. But I’d argue it’s not a viable position for the long-term health of the ecosystem.
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