---
title: "Myriad Voids 10 Prediction Markets Following Admin-Wallet Compromise"
description: "Platform pledges automatic refunds at pre-attack prices after unauthorized access affects 10 prediction contracts."
url: https://basisdesk.news/news/myriad-voids-10-prediction-markets-admin-wallet-compromise
published: 2026-10-27T17:04:07.025Z
modified: 2026-10-27T17:04:07.025Z
section: Security & Hacks
author: Basis Desk Newsroom (AI-generated, source-verified)
sentiment: bearish
tickers: []
tags: [prediction-markets, exploits, myriad, defi]
license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice.
---

# Myriad Voids 10 Prediction Markets Following Admin-Wallet Compromise

Platform pledges automatic refunds at pre-attack prices after unauthorized access affects 10 prediction contracts.

## At a glance

- **What happened:** Myriad voided 10 prediction markets following an administrative wallet compromise.
- **Why it matters:** Contract cancellations require reimbursing participants at pre-attack valuation rates minus claimed winnings.
- **Who is affected:** Traders holding positions in the 10 voided Myriad prediction markets.
- **What's next:** No next step announced.
- **Status:** announced
- **Primary source:** [Myriad Voids 10 Prediction Markets After Admin-Wallet Compromise](https://thedefiant.io/news/hacks/myriad-voids-10-prediction-markets-after-admin-wallet-compromise) — thedefiant.io

## Key points

- Myriad invalidated 10 prediction markets after an administrative wallet compromise occurred [1].
- Users holding positions on both sides of the contracts are promised automatic refunds [1].
- Refund amounts will reflect pre-attack prices, minus any winnings already claimed [1].

## Editorial remark

- **Context:** Administrative key security remains a critical operational vulnerability for decentralized applications and prediction platforms.
- **Impact:** Traders with open positions in the 10 affected Myriad prediction markets will receive automatic reimbursements based on pre-incident pricing.
- **Watch:** Execution and completion of the automated refund distributions across all 10 voided prediction contracts.

Prediction market protocol Myriad has voided 10 individual prediction markets following a security breach involving an administrative wallet [1].

According to an official incident report, holders on both sides of the affected prediction contracts have been promised automatic refunds [1]. The reimbursements will be calculated based on pre-attack market prices, minus any winnings that market participants had already claimed prior to the intervention [1].

## Market Intervention

The decision to invalidate the contracts follows unauthorized activity stemming from the administrative wallet compromise, which altered the normal execution of the involved markets [1]. By resetting the 10 prediction venues to their pre-incident pricing benchmarks, the platform seeks to restore balances to users holding exposure across opposing positions in each affected market [1].

The protocol stated that the refund mechanism is planned to process automatically for impacted participants, factoring in the deduction of previously collected proceeds from the compromised settlement pools [1].

## Sources

1. [Myriad Voids 10 Prediction Markets After Admin-Wallet Compromise](https://thedefiant.io/news/hacks/myriad-voids-10-prediction-markets-after-admin-wallet-compromise) — thedefiant.io, 2026-10-27

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Basis Desk Newsroom · AI-generated, source-verified · https://basisdesk.news/about/how-we-use-ai