--- title: "Mercado Bitcoin halts deposits and withdrawals after security incident" description: "Brazil's Mercado Bitcoin suspended deposits and withdrawals after a security incident and said customers suffered no losses and no data leaked, according to…" language: en canonical: "https://whycoinmoves.com/en/events/bitcoin-brazil-s-mercado-bitcoin-halts-a8cb5c796590e1" published: 2026-11-02T15:53:57.000Z updated: 2026-11-02T16:55:00.000Z indexable: true --- # Mercado Bitcoin halts deposits and withdrawals after security incident Brazil's Mercado Bitcoin suspended deposits and withdrawals after a security incident and said customers suffered no losses and no data leaked, according to… Attributed sources: [CoinDesk](), [Bitcoin Magazine](), [Decrypt]() ## Key facts Brazil's Mercado Bitcoin suspended deposits and withdrawals after a security incident and said customers suffered no losses and no data leaked, according to Bitcoin Magazine. Tether CEO Paolo Ardoino said more than 4.5 million USDT linked to the incident was frozen. Evidence strength: Multiple publishers, 3 publisher group(s) (CoinDesk, Bitcoin Magazine, Decrypt). After site detection, observed returns were 5 minutes: -0.36% (Nov 2, 2026, 15:53 → Nov 2, 2026, 15:58, UTC; Gate · USDT); 1 hour: -0.31% (Nov 2, 2026, 15:53 → Nov 2, 2026, 16:53, UTC; Gate · USDT) In the preceding 30 days, the 99th percentile of absolute hourly returns was 1.23% (OKX · USDT; cutoff Nov 2, 2026, 15:53, UTC). ## Returns after site detection | Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source | | --- | --- | --- | --- | --- | --- | | 5 minutes | -0.36% | -0.36% | 0.00 pts | Nov 2, 2026, 15:53 → Nov 2, 2026, 15:58 | Gate · USDT | | 1 hour | -0.31% | -0.31% | 0.00 pts | Nov 2, 2026, 15:53 → Nov 2, 2026, 16:53 | 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, 15:53 | ## Claims and open questions - Mercado Bitcoin said in a statement on X that it identified and contained the incident, that customers suffered no losses and no data leaked, and that the suspension was a precaution, according to Bitcoin Magazine. - Tether CEO Paolo Ardoino said on X that Tether froze more than 4.5 million USDT tied to the attack, Decrypt reported. - Which Mercado Bitcoin system was breached, and what total loss figure does the exchange confirm in an official statement or filing? - When will Mercado Bitcoin reopen deposits and withdrawals, and has it set a timetable or absorbed-losses commitment in an official notice? ## Source evidence - [Brazil’s Mercado Bitcoin halts withdrawals after $40 million drained across 10 chains]() — CoinDesk; published Nov 2, 2026, 15:53; received Nov 2, 2026, 15:53 (UTC). - [Brazil’s Mercado Bitcoin Freezes Deposits and Withdrawals Due to Ongoing Security Incident, Losses Estimated Near $40 Million]() — Bitcoin Magazine; published Nov 2, 2026, 16:09; received Nov 2, 2026, 16:10 (UTC). - [Brazil's Largest Exchange Mercado Bitcoin Halts Withdrawals After $40 Million Hack]() — Decrypt; published Nov 2, 2026, 16:46; received Nov 2, 2026, 16:46 (UTC). ## Recent BTC events and market reactions - [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% - [BTCPay tells merchants to shut down servers after reports of drained hot wallets]() — Published Nov 2, 2026, 04:41 (UTC) · Multiple publishers (2 publishers) · Security · 5m -0.06% / 1h -0.08% - [Bitcoin recovers toward $79,000 as markets absorb crypto's largest hack]() — Published Nov 2, 2026, 04:42 (UTC) · Single source (1 publisher) · Security · 5m +0.02% / 1h -0.07% - [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]()