> For the complete documentation index, see [llms.txt](https://whitepaper.nuon.fi/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.nuon.fi/architecture/deposit-conversion.md).

# Deposit Conversion

Depositing 1 USDC yields 1 NUON in return, plus a small minting fee is applied. The minting fee is calculated as the number of USDC, prorated at the current Truflation APY. It is taken in order to prevent a siphoning attack in which a user could deposit USDC and withdraw more USDC (as they would have more NUON over time) before it is put to work in the protocol - effectively getting the yield from Nuon without supplying USDC to generate the yield.