# Aave Swapper Loses $50M to Slippage *Author: Jack Inabinet* *Published: Mar 12, 2026* *Source: https://www.bankless.com/read/news/aave-swapper-loses-50m-to-slippage* --- Earlier today, an individual attempted to purchase $50M of AAVE tokens through the Aave interface. The transaction was subject to high slippage and furnished 324 AAVE (~$35k), resulting in a near total loss. ### What's the Scoop? - **Bungled Trade:** Earlier today, a user attempted to purchase $50M of AAVE tokens using USDT through Aave's website frontend. The user initiated the transaction via mobile device, disregarded automated slippage warnings, and proceeded with the swap, netting a dismal 324 AAVE. In response, Aave Labs CEO Stani Kulechov announced that Aave will refund the user's $600k swap fee and explore additional guardrails to better protect users. - **Monster MEV: **Blockchain data [analyzed](https://x.com/bh359/status/2032195231681241218?s=20) by onchain researcher *bheau* suggests the transaction generated the largest single-block builder reward in history. [Titan](https://www.titanbuilder.xyz/) captured $34M from an MEV bot that paid heavily for the rights to conduct arbitrage around the swap. The MEV bot itself captured about $10M by "[backrunning](https://cow.fi/learn/what-is-backrunning-mev-attacks-explained)" the trade's immense price dislocation. > Earlier today, a user attempted to buy AAVE using $50M USDT through the Aave interface.Given the unusually large size of the single order, the Aave interface, like most trading interfaces, warned the user about extraordinary slippage and required confirmation via a checkbox.…— Stani.eth (@StaniKulechov) [March 12, 2026](https://twitter.com/StaniKulechov/status/2032193345414664659?ref_src=twsrc%5Etfw) --- *This article is brought to you by [MetaMask](https://www.bankless.com/sponsor/metamask-1776260643?ref=read/news/aave-swapper-loses-50m-to-slippage)*