Brazil's Biggest Bitcoin Exchange Says It Will Refund Users After a $40 Million Hack
Mercado Bitcoin says customers won't pay for a hack that drained tens of millions. Withdrawals on the exchange remain frozen with no restart date.
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Last push: Nov 2, 2026, 03:49 PM
Mercado Bitcoin says customers won't pay for a hack that drained tens of millions. Withdrawals on the exchange remain frozen with no restart date.
Amazon, Tesla, SpaceX, Netflix, Lam Research, and SoFi objected to trading of their shares on the planned OKX-ICE tokenized stock venue, bringing the total to 56.
From AI deepfakes to poisoning code libraries: here's how North Korean hackers get inside crypto companies.
A suspected hacking wave has pushed supermarket freezers into defrost mode across ten European countries, with temperatures reportedly hitting 50°C. Nobody knows who's behind it or why it spread.
The National Cyber Security Centre said AI will expose security flaws "tolerated for far too long," and called time on "tech on the cheap."
This week’s newsletter describes a protocol for creating silent payment transactions from multiparty wallets, summarizes the responsible disclosure of a denial-of-service vulnerability that affected older versions of Core Lightning, and explains Bitcoin Core’s updated security policy for easily discoverable vulnerabilities. Also included are our regular sections with selected questions and answers from the Bitcoin Stack Exchange, announcements of new releases and release candidates, and descriptions of notable changes to popular Bitcoin infrastructure software.
Bitcoin Core version 29.5 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you. Bitcoin Core 29.5 released was originally pub…
Bitcoin Core version 30.4 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you. Bitcoin Core 30.4 released was originally pub…
Bitcoin Core version 31.2 is now available for download . See the release notes for more information about the bug fixes in this release. If you have any questions, please stop by the #bitcoin IRC chatroom ( IRC , web ) and we’ll do our best to help you. Bitcoin Core 31.2 released was originally pub…
Bitcoin Core queues announcements for all peers, including paused ones. Pre-BIP31 peers could stay paused forever and let the queue grow unboundedly. A fix for this issue was released in Bitcoin Core versions 29.5, 30.4, 31.2 and 32.1. This issue is considered Medium severity and easily discoverable…
On platforms other than Linux, a malicious peer could cause a node to run out of memory by sending TCP urgent (out-of-band) data. A fix for this issue was released in Bitcoin Core versions 29.5, 30.4, 31.2 and 32.1. This issue is considered Medium severity and easily discoverable . Details Bitcoin C…
Gustavo Flores Echaiz and Brandon Black are joined by Adam Gibson, Vincenzo Palazzo, and João Dias to discuss Newsletter #428.
This week’s newsletter describes a design for a single-issuer layer 2 whose users can redeem their bitcoin onchain without the issuer’s cooperation and summarizes a proposal for including hash preimages in output script descriptors. Also included are our regular sections describing recent changes to services and client software, announcing new releases and release candidates, and describing notable changes to popular Bitcoin infrastructure software.
Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Erick Cestari and Adam Gibson to discuss Newsletter #427.
This week’s newsletter summarizes the disclosure of two denial-of-service vulnerabilities in older versions of Eclair and describes a proposed scheme for running complex multi-round contracts inside Lightning channels. Also included are our regular sections announcing new releases and release candidates and describing notable changes to popular Bitcoin infrastructure software.