---
title: "Mercado Bitcoin to Begin Phased Reopening Following $46M Hot Wallet Breach"
description: "The Brazilian exchange said it will start restoring read-only account access on Monday and plans to cover all affected client assets."
url: https://basisdesk.news/news/mercado-bitcoin-phased-reopening-breach
published: 2026-11-04T23:36:18.121Z
modified: 2026-11-04T23:36:18.121Z
section: Security & Hacks
author: Basis Desk Newsroom (AI-generated, source-verified)
sentiment: neutral
tickers: []
tags: [mercado-bitcoin, hacks, exchanges, brazil, tether, security-breach]
license: Quote with attribution to Basis Desk (basisdesk.news). Not financial advice.
---

# Mercado Bitcoin to Begin Phased Reopening Following $46M Hot Wallet Breach

The Brazilian exchange said it will start restoring read-only account access on Monday and plans to cover all affected client assets.

## At a glance

- **What happened:** Mercado Bitcoin announced a phased restart beginning Monday after an estimated $46 million exploit targeted its hot wallets.
- **Why it matters:** The exchange has pledged to use corporate funds to fully replace compromised assets, having already frozen $15 million with industry assistance.
- **Who is affected:** Mercado Bitcoin customers with frozen account balances, trading access, and pending withdrawals.
- **What's next:** Web platform access for balance and statement viewing begins Monday, followed by trading and withdrawals after security testing.
- **Primary source:** [Mercado Bitcoin says phased reopening to begin Monday, will cover losses](https://cointelegraph.com/news/mercado-bitcoin-phased-reopening-to-begin-monday-pledges-to-cover-losses?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound) — cointelegraph.com

## Key points

- Mercado Bitcoin plans a phased platform restoration starting Monday following a breach of over $46 million.
- Initial access will be limited to viewing balances, while trading, transfers, and withdrawals stay halted pending security audits.
- More than $15 million of the illicitly transferred funds have been frozen, and the firm pledged to fully reimburse affected assets.

## Editorial remark

- **Context:** Attackers transferred funds out of Mercado Bitcoin's hot wallets and deposit infrastructure on Monday through standard asset transactions, prompting an immediate operational halt.
- **Impact:** Account holders gain visibility into their positions on Monday, while overall market liquidity on the Brazilian exchange remains paused pending external audits.
- **Watch:** The launch of read-only access on Monday and the timeline for external security validation to re-enable trading and withdrawals.

Brazilian exchange Mercado Bitcoin will initiate a phased reopening on Monday following a security incident that led to an estimated loss exceeding $46 million, according to a statement from the company [1]. The breach occurred on Monday, when unauthorized actors drained funds from hot wallets and customer deposit addresses via routine standard transactions [1].

Under the initial phase of the recovery, clients will be granted access solely via the web platform to inspect account balances, statements, and existing holdings [1]. Account transfers, outgoing withdrawals, and order-book trading will remain paused until external cybersecurity assessments confirm system integrity [1].

## Asset Recovery and Capital Reserves

Mercado Bitcoin said it will utilize internal corporate reserves to make clients whole [1]. The platform confirmed that over $15 million of the stolen assets have already been frozen with assistance from external industry partners [1]. The firm's execution desk is preparing to execute open-market repurchases across domestic and offshore venues to replenish the depleted reserves [1].

The exchange highlighted that its balance sheet remains solvent, noting an existing capital injection of $20 million received from stablecoin operator Tether to fund ongoing operational activities [1]. The broader digital asset market was trading higher at the time of writing, with Bitcoin changing hands at $80,379.

## Sources

1. [Mercado Bitcoin says phased reopening to begin Monday, will cover losses](https://cointelegraph.com/news/mercado-bitcoin-phased-reopening-to-begin-monday-pledges-to-cover-losses?utm_source=rss_feed&utm_medium=rss&utm_campaign=rss_partner_inbound) — cointelegraph.com, 2026-11-04

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