⚡️ Bitcoin Sydney hosts an informal meetup on August 8th to discuss the Coldcard entropy bug. Discussion topics: • What the Coldcard entropy vulnerability actually is, in plain English • How to work out whether you’re affected, and what to do if you are • Verifiable seed generation: dice rolls, entropy you can audit yourself • Custody considerations: single-sig vs multisig, single-vendor risk, passphrases • Migration hygiene: moving funds without creating new risks in the process Bring your questions. Experienced Bitcoiners will be on hand.

BitcoinOnly Events

Bitcoin Sydney — Coldcard Entropy Bug & Custody Considerations | BitcoinOnly Events

On August 8th, Bitcoin Sydney hosts an adhoc Saturday session about the Coldcard entropy bug and what it could mean for how you hold your Bitcoin.

⚡️ The Auckland Bitcoin Meetup is a recurring monthly gathering held on the third Sunday of each month. In the second half of 2026, the meetup takes place at Node Space in Devonport. Next up is on August 17th.

BitcoinOnly Events

Auckland Bitcoin Meetup | BitcoinOnly Events

The Auckland Bitcoin Meetup held on the third Sunday of each month. In the second half of 2026, the meetup takes place at Node Space in Devonport.

⚡️ The best time to build is NOW! We're happy to be a media partner for Startup Day Guadalajara 🇲🇽 Hosted by @PlebLab , this two-day Bitcoin builder event brings together founders, developers, investors, and operators for a focused hackathon, startup talks, product announcements, pitches, and high-signal networking built around the next wave of Bitcoin startups. 📅 August 20: Hackalajara 2.0 -- Bitcoin Lightning Hackathon 📅 August 21: PlebLab Startup Day 🎟 Use code BitcoinEventsHQ for 21% off your ticket via Zaprite.

BitcoinOnly Events

PlebLab Startup Day 2026 Guadalajara | BitcoinOnly Events

PlebLab Startup Day Guadalajara is a two-day Bitcoin builder event hosted at Ciudad Creativa Digital in Guadalajara, Jalisco on August 20-21, 2026.

We've just dropped a fresh article on the latest developments around the #Coldcard exploit.

BitcoinOnly Events

Coldcard Losses Near $90M as Attackers Start Cracking Passphrases | BitcoinOnly Events

The Coldcard entropy exploit has grown from a suspicious $38 million sweep into what researchers now call the largest self-custody breach on record.

📆 Save the date: August 21, London Hosted by Antidote, Mempool Dev Day is bringing together Bitcoin developers, builders, and curious hackers for a day of workshops, collaboration, and good conversations. 🎟 Free to attend 🔗

BitcoinOnly Events

Mempool Dev Day London | BitcoinOnly Events

Mempool Dev Day London is bringing together Bitcoin developers, builders, and curious hackers for a day of workshops, collaboration, and good conve...

A lot of people might be concerned about the ColdCard issues. The Bitcoin Sundays LA family is gathering Sunday at Huntley Hotel in Santa Monica to talk about it and help each other with it.

BitcoinOnly Events

Bitcoin Sundays LA Happy Hour -- ColdCard | BitcoinOnly Events

A lot of people, including the Bitcoin Sundays LA family might be concerned about the ColdCard issues, let's talk about it and help each other...

💥 Coinkite has warned users of its #Coldcard Mk3 signing device to move their funds after identifying a potential flaw in how certain firmware versions generated wallet seed phrases.

BitcoinOnly Events

Coldcard Issues Mk3 Security Warning as Experts Probe $38M Bitcoin Sweep | BitcoinOnly Events

Coinkite warns Coldcard Mk3 users to migrate funds over a seed generation flaw, as experts investigate a suspicious $38M Bitcoin sweep tied to weak...

🇮🇪 Come join the inaugural Bitcoin Wexford Community Meetup on Thursday, July 30 at Red Books. Fix the money and we fix the world.

BitcoinOnly Events

Bitcoin Wexford Community Meetup | BitcoinOnly Events

Come join the inaugural Bitcoin Wexford Community Meetup on Thursday, July 30 at Red Books. Fix the money and we fix the world.

⚡️ Lightning Labs, the San Francisco-based company behind the widely used LND Lightning Network implementation, has announced the alpha release of Wavelength, a developer toolkit designed to make integrating Bitcoin payments into applications dramatically simpler—and to put those payments within reach of AI agents for the first time.

BitcoinOnly Events

Lightning Labs' Wavelength Lets Developers and AI Agents Add Bitcoin Payments | BitcoinOnly Events

Lightning Labs has announced the alpha release of Wavelength, a developer toolkit that puts Bitcoin payments within reach of AI agents for the firs...

⚡️ Jack Dorsey’s payments and software company Block has launched Buzz, an open-source group chat and collaboration platform designed to put human employees and AI agents into the same workspace. Buzz combines channels, threads, direct messages, voice, media sharing, code repositories, and automated workflows into a single interface. Block says that Buzz is “model-agnostic,” meaning teams can plug in agents built on Claude Code, Codex, Goose, or custom-built frameworks, so organizations are not locked into any single AI provider.

BitcoinOnly Events

Jack Dorsey's Block Launches Buzz, an Open-Source Slack and GitHub Rival Built on Nostr | BitcoinOnly Events

Jack Dorsey's Block has launched Buzz, an open-source group chat and collaboration platform designed to put human employees and AI agents into...

🌆 Columbus, Ohio will host the inaugural Midwest Bitcoin Summit on September 23-24, and if CEO and co-founder Andrew Tillman has his way, it won’t look like every other Bitcoin conference you’ve been to. 🔗

BitcoinOnly Events

Midwest Bitcoin Summit Aims to Bring Bitcoin to the Rust Belt | BitcoinOnly Events

Columbus, Ohio is getting its first-ever Bitcoin conference this September, and it's not trying to be another echo chamber for people already ...

⚡️ We're happy to extend our partnership with @Adopting Bitcoin Cape Town For the fourth year running, this conference series continues to champion Bitcoin adoption, empowering individuals, and nurturing parallel institutions and economies to reshape South Africa’s financial landscape. Join us at Adopting Bitcoin Cape Town 2027 on February 26-27. 🎟 Code BitcoinEventsHQ knocks 10% off the tickets price! 🔗

BitcoinOnly Events

Adopting Bitcoin Cape Town 2027 | BitcoinOnly Events

Adopting Bitcoin Cape Town 2026 champions Bitcoin adoption by empowering individuals and nurturing parallel institutions to transform South Africa�...

⭐️ GA tickets for Bitcoin Conference 2027 are available with a discount this week An additional 10% OFF with code BitcoinEventsHQ Sale runs July 4-10. Pro & Whale not included. 🎟

The Bitcoin Conference is the world

Bitcoin 2027

Nashville, TNMusic City CenterJuly 15-17, 2027

🥷 Leading the fight: BULL BITCOIN is taking France's highest administrative court to seek the annulment of DAC8, a new European law that puts millions of users at physical risk. "We cannot let the very foundations of civilization be shattered by this attack on privacy rights," said @FRANCIS - BULLBITCOIN.COM . "We must draw a line in the sand and refuse to cede any more territory before we have nothing left." 🔗

BitcoinOnly Events

Bull Bitcoin Files Legal Challenge Against EU's Crypto Mass-Surveillance Directive | BitcoinOnly Events

Bull Bitcoin is taking France's highest administrative court to seek the annulment of DAC8, a new European law that puts millions of users at ...

💫 BTC Prague returns May 6-8, 2027 for its fifth edition. A month earlier than previous editions, and a new venue. As always, save up to 15% on tickets with code BTCPraha10 🎟

BTC Prague

BTC Prague - The biggest bitcoin event in Europe

The biggest, most influential bitcoin event in Europe ever, again!

🇺🇸 Good morning, America! Happy Independence Day! 🎆🎆🎆 Stay sovereign, stay free! 🗽

🫰 Finance has never lacked forecasts. Every bank, asset manager, central bank and research desk produces them. However, the most valuable question is not always what do people think, but what conviction are people willing to stand behind, argues James Pierog of Glimpse Markets, the first Bitcoin-native forecast platform.

BitcoinOnly Events

Prediction Markets Set to Become Finance’s Missing Information Layer | BitcoinOnly Events

The future of prediction markets in finance will depend on mechanism design and focus, argues James Pierog, the Founder and CEO of Glimpse.

⚡ Blink, the Lightning wallet born in El Salvador’s Bitcoin Beach community, has introduced non-custodial accounts, allowing users to hold their own private keys rather than entrusting funds to the company.

BitcoinOnly Events

Blink Wallet Launches Non-Custodial Accounts | BitcoinOnly Events

Blink Wallet has introduced non-custodial accounts—a move that allows users to hold their own private keys rather than entrusting their funds to ...

💥 Mining Disrupt 2026 is just THREE weeks away! >>> BOGO sale running July 1–6 only. >>> Buy one ticket → bring a fellow disruptor FREE. ✨ Use code BitcoinEventsHQ for an extra 20% off at checkout. #MiningDisrupt #BitcoinMining #Energy 🎟

Eventbrite

Mining Disrupt Conference | 2026 | Miami : Florida

Mining Disrupt is the Worlds Largest Bitcoin Mining Expo. This is our 8th year, held in Miami, Florida at the Miami Convention Center.

💼 Mark your calendars for September 23-24, 2026. 💫 MIDWEST BITCOIN SUMMIT 📍 Greater Columbus Convention Center, Columbus, OH 🎟 Save 21% with code BTCHQ 🔗

BitcoinOnly Events

Midwest Bitcoin Summit 2026 | BitcoinOnly Events

Join the Midwest Bitcoin Summit in Columbus, OH to explore Bitcoin adoption, business use cases, and the future of money in America’s heartland.