--- title: "Mercado Bitcoin pauses withdrawals after $46 million security breach" description: "Mercado Bitcoin, described by The Block as Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals. The Block reported the…" language: en canonical: "https://whycoinmoves.com/en/events/bitcoin-mercado-bitcoin-wallets-keep-moving-13d70fc1d67708" published: 2026-11-02T19:14:01.000Z updated: 2026-11-02T20:24:13.000Z indexable: true --- # Mercado Bitcoin pauses withdrawals after $46 million security breach Mercado Bitcoin, described by The Block as Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals. The Block reported the… Attributed sources: [Cointelegraph](), [The Block]() ## Key facts Mercado Bitcoin, described by The Block as Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals. The Block reported the breach at $46 million, while Cointelegraph reported the exchange said customer funds and data were safe after halting deposits and withdrawals. Evidence strength: Multiple publishers, 2 publisher group(s) (Cointelegraph, The Block). After site detection, observed returns were 5 minutes: 0.00% (Nov 2, 2026, 19:14 → Nov 2, 2026, 19:19, UTC; Gate · USDT); 1 hour: -0.08% (Nov 2, 2026, 19:14 → Nov 2, 2026, 20:14, UTC; Gate · USDT) In the preceding 30 days, the 99th percentile of absolute hourly returns was 1.23% (OKX · USDT; cutoff Nov 2, 2026, 19:14, UTC). ## Returns after site detection | Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source | | --- | --- | --- | --- | --- | --- | | 5 minutes | 0.00% | 0.00% | 0.00 pts | Nov 2, 2026, 19:14 → Nov 2, 2026, 19:19 | Gate · USDT | | 1 hour | -0.08% | -0.08% | 0.00 pts | Nov 2, 2026, 19:14 → Nov 2, 2026, 20:14 | Gate · USDT | ## Historical hourly baseline | Metric | Value | | --- | --- | | Coverage | 100.0% (720/720) | | Median absolute hourly return | 0.14% | | 99th percentile of absolute hourly returns | 1.23% | | BTC beta | 1.00 | | Source / cutoff (UTC) | OKX · USDT / Nov 2, 2026, 19:14 | ## Claims and open questions - The Block reported that Mercado Bitcoin, Brazil's largest crypto exchange, confirmed a security incident and paused withdrawals in a breach of $46 million. - Cointelegraph reported that Mercado Bitcoin said customer funds and data were safe after pausing deposits and withdrawals. - Cointelegraph reported that Mercado Bitcoin wallets showed transfers following the $46 million theft. - What mechanism or specific wallets were involved in the breach, as confirmed by an official Mercado Bitcoin statement or on-chain data. - Whether the exchange has set a timeline or process for resuming deposits and withdrawals, per a company notice. ## Source evidence - [Mercado Bitcoin wallets show post-hack transfers after $46M theft]() — Cointelegraph; published Nov 2, 2026, 19:05; received Nov 2, 2026, 19:14 (UTC). - [Mercado Bitcoin, Brazil’s largest crypto exchange, hit by $46 million security breach]() — The Block; published Nov 2, 2026, 20:19; received Nov 2, 2026, 20:23 (UTC). ## Recent BTC events and market reactions - [Mercado Bitcoin halts deposits and withdrawals after security incident]() — Published Nov 2, 2026, 15:53 (UTC) · Multiple publishers (3 publishers) · Security · 5m -0.36% / 1h -0.31% - [Strive adds 124 Bitcoin in roughly $10 million purchase]() — Published Nov 2, 2026, 15:01 (UTC) · Multiple publishers (2 publishers) · General news · 5m +0.25% / 1h -0.32% - [Strategy buys 811 bitcoin for $65.5 million and repurchases $208.2 million of STRC]() — Published Nov 2, 2026, 13:09 (UTC) · Multiple publishers (4 publishers) · General news · 5m -0.04% / 1h +0.29% - [Binance hackers begin swapping stolen Solana tokens for Bitcoin, Chainalysis says]() — Published Nov 2, 2026, 12:40 (UTC) · Single source (1 publisher) · Security · 5m -0.05% / 1h +0.37% - [Strangers send sub-dollar payments to Binance hacker wallets with messages]() — Published Nov 2, 2026, 05:18 (UTC) · Single source (1 publisher) · Security · 5m +0.13% / 1h -0.02% - [Full coin archive]() ## Research for this archive - [Crypto hacks and price impact: Bybit and Cetus case studies]() - [Why is crypto moving? How to check the evidence]() - [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns]() - [Will Bitcoin go back up? Every crash since 2011 and its recovery time]() Evidence levels describe source coverage, not the probability that a report is true. Price moves and their timing cannot establish a cause; minute samples show an observed interval and alert thresholds are heuristics. Explanations are model-assisted, with citations and figures checked. Source titles stay in their original language; full articles are not republished. [Methods and limitations]()