# Peer Launches Automated Dispute Protocol

> Peer's Disputes Portal uses DKIM email verification to protect LPs from fiat chargeback fraud, starting with Venmo.

**Published by:** [ETH Daily](https://ethdaily.io/)
**Published on:** 2026-05-01
**Categories:** ["peer", "zk", "usdc", "fraud-prevention", "dkim", "venmo", "fiat"]
**URL:** https://ethdaily.io/peer-launches-automated-dispute-protocol

## Content

Peer, a ZK-powered fiat–crypto bridge, launched its Disputes Portal, an automated system to protect liquidity providers from fiat chargeback fraud. The issue lies where takers pay in fiat, receive USDC onchain, then reverse the fiat payment. The dispute portal allows Peer LPs to submit the disputed transaction and the payment platform's email. Using DKIM verification, the system proves if the email is authentic, and the protocol cross-checks the amount, date, and transaction ID against onchain records. If a dispute is approved, the attacker's wallet and linked wallets are blocked, payment methods are revoked, and refunds are triggered. Each case permanently removes bad actors. The feature is live now, starting with Venmo.Disclaimer: Content is for informational purposes only, not endorsement or investment advice. The accuracy of information is not guaranteed.

## Publication Information

- [ETH Daily](https://ethdaily.io/): Publication homepage
- [All Posts](https://ethdaily.io/): More posts from this publication
- [RSS Feed](https://api.paragraph.com/blogs/rss/@ethdaily): Subscribe to updates
- [Twitter](https://twitter.com/intent/follow?screen_name=ethdaily): Follow on Twitter