{"id":6889,"date":"2026-11-02T18:46:04","date_gmt":"2026-11-02T18:46:04","guid":{"rendered":"https:\/\/globalnigerianews.com\/index.php\/2026\/11\/02\/brazils-largest-crypto-exchange-mercado-bitcoin-halts-withdrawals-after-suspected-40m-hack\/"},"modified":"2026-11-02T18:46:04","modified_gmt":"2026-11-02T18:46:04","slug":"brazils-largest-crypto-exchange-mercado-bitcoin-halts-withdrawals-after-suspected-40m-hack","status":"publish","type":"post","link":"https:\/\/globalnigerianews.com\/index.php\/2026\/11\/02\/brazils-largest-crypto-exchange-mercado-bitcoin-halts-withdrawals-after-suspected-40m-hack\/","title":{"rendered":"Brazil’s largest crypto exchange, Mercado Bitcoin, halts withdrawals after suspected $40m hack"},"content":{"rendered":"

Brazil\u2019s largest crypto exchange, Mercado Bitcoin<\/a>, has suspended deposits and withdrawals after a security incident that analysts say drained more than $40 million. The exchange has since said that no customer lost money.<\/p>\n

\u201cWe identified and swiftly contained a security incident in one of our systems early this morning,\u201d Mercado Bitcoin said in a statement on X<\/a>, translated from Portuguese. It said no customers were harmed and no data was breached.<\/p>\n

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The exchange called the suspension a precaution. Its teams are investigating, tracking the assets and coordinating with the authorities.<\/p>\n

Who disclosed that over $40 million was taken from Mercado Bitcoin?<\/h3>\n

Blockchain security firm Hypernative has flagged more than $40 million in suspicious transfers across at least 10 blockchains, including Bitcoin, Ethereum, Solana and Tron, according to a preliminary analysis reported by Decrypt. The exchange has not confirmed the figure. It has also not said which system was breached or how the attackers got in.<\/p>\n

Also read: <\/em>North Korean-linked hackers steal $6.3 billion from Binance in biggest crypto heist ever<\/strong><\/a><\/p>\n

In a follow-up post, the exchange published destination addresses on five networks: Ethereum-compatible chains, Bitcoin, Solana, Stellar and Tron. It said the addresses were shared only to help others identify and track the funds.<\/p>\n

Tether CEO Paolo Ardoino said in a post on X that the stablecoin issuer had frozen more than 4.5 million USDT linked to the incident. A freeze stops the tokens from moving. It does not return them to the owner.<\/p>\n

Pablo Sabbatella, founder of security firm Opsek, relayed a report claiming that the biggest outflows came within about half an hour in the early hours of Monday. The report also claims the transfers were plain transactions, not a smart contract exploit. CoinDesk, which reported this, noted that how the attacker gained signing access is unknown. None of this has been independently verified.<\/p>\n

\"\"<\/figure>\n

A rough week for crypto exchanges<\/h3>\n

The attack comes days after hackers reached about $6.3 billion in assets at Binance, in what has been called the largest crypto hack on record. The FBI attributed it to North Korea\u2019s TraderTraitor group.<\/p>\n

Binance said attackers got in through an engineer\u2019s laptop. It has since said it found additional points of breach. The exchange says it has replaced 95% of the affected assets and begun restoring withdrawals in phases.<\/p>\n

Bitcoin Magazine reported that Tether froze about $1.57 billion in USDT and Circle froze more than $800 million in USDC in that case. There is no public evidence linking the exchange\u2019s incident to the Binance attack, and Mercado has not named a suspect.<\/p>\n

Read also: <\/em>From PHP2Shell to Binance\u2019s $6.3bn drain: inside the structural failures that caused Black October<\/a><\/strong><\/p>\n

Source: <\/p>\n

Technext<\/div>\n","protected":false},"excerpt":{"rendered":"

Brazil\u2019s largest crypto exchange, Mercado Bitcoin, has suspended deposits and withdrawals after a security incident that analysts say drained more than $40 million. The exchange has since said that no… <\/p>\n","protected":false},"author":1,"featured_media":6890,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-6889","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/posts\/6889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/comments?post=6889"}],"version-history":[{"count":0,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/posts\/6889\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/media\/6890"}],"wp:attachment":[{"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/media?parent=6889"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/categories?post=6889"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/globalnigerianews.com\/index.php\/wp-json\/wp\/v2\/tags?post=6889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}