Multisig in Practice | Web3 Devs Underground Monthly Meetup nitter.net/i/broadcasts/1oJMvNkPN…

Bitcoin is no longer a fringe asset. As it becomes embedded across institutions, governments, public companies, and ETFs, has it become systemically important? Lee Counselman (@Barclays) with @SHAP0W (@MasterkeyVC), Evgeny Gokhberg (@Re7Capital), @Dgt10011 (@Paraficapital), and @stutireal (@PanteraCapital). Watch the full Out East Summit 2026 panel: piped.video/n8N7rN93eFY Presenting media sponsor @FTDA_US. This content is for informational purposes only and is not investment advice. Any views expressed are the speaker’s own and do not necessarily reflect the views of their firm.

NEXT MEETUP IN TEL AVIV 1. @_benkaufman workshops multisig with @SparrowWallet. 2. @boazeb on building @summocash, his 2-of-3 multisig app. 🗓️ Wednesday - 23/9/2026 📍@sncentral_ (28 Lilienblum St.) Learn to keep your crypto safe: luma.com/o6gh384v

Open-Kritt: AI Agents That Find Real Vulnerabilities nitter.net/i/broadcasts/1pKdRDazg…

@ControlZ_1337 open-sourced his AI agent that found a $250,000 bug, and it has already passed 1,000 GitHub stars and secured hundreds of thousands of dollars. Next week on the Underground, he'll show you how it works: Register here: luma.com/eo69kght?tk=kIt76F 📅 Wednesday, August 19 🕐 10:00 EDT · 16:00 CET · 17:00 IDT 📍 Live on YouTube

Amazing work @3miLabs and @TomerAshur Kudos

Is Your Bitcoin Safe? ColdCard's RNG Failure and How Not to Lose It All nitter.net/i/broadcasts/1rGmqqPvB…

🇮🇱 $ILS trading is overwhelmingly global → 88% of spot & forward activity involved a non-resident. We are now LIVE at @sncentral_ 👇

Raised in USD, but spending ILS? Israeli startups have lost ~30% of their runways in two years. A Practical Guide to Protecting Your Runway from Currency Volatility (FX & Crypto) → Join us LIVE: 29 July at @sncentral_ in Tel Aviv 🇮🇱 → Speakers: Tal Raz (@AltshulerShaham) + @OfirEliasi Register here: luma.com/atpdscdn?tk=EfVtIe

AMM design is being rethought from the ground up, and 1inch Aqua is the clearest signal of where on-chain trading infrastructure is heading. Join us for a technical deep-dive into 1inch's next-generation liquidity protocol: how shared liquidity works, and what it unlocks for LPs, DeFi users, and builders. 🎤 Tanner Moore (@tanz0rz), Technical Account Manager at @1inch What we're covering: • Where modern AMM design falls short: fragmented liquidity, idle capital, LP tradeoffs • What Aqua is, and which of those assumptions it challenges • Shared liquidity in practice: capital efficiency and what it means for LPs • What the design unlocks for swappers • Building on top of or integrating with Aqua If you're building DeFi applications, providing liquidity, or want to understand where on-chain trading infrastructure is heading, this session is for you. 📅 Wednesday, July 15th 🕐Time: 10:00 EDT | 16:00 CET | 17:00 Israel 📍Where: Streaming live on X, YouTube & LinkedIn Register NOW: luma.com/7p4xrxd7 Powered by @MasterkeyVC

Ondo tokenized stocks are now live on LI.​FI. Tokenized SpaceX, NVIDIA, Tesla and hundreds more, are now available to LI.​FI's distribution network of 1000+ enterprise partners. Accelerating access to tokenized real world assets. Powered by @OndoFinance x LI.​FI.

AI agents are signing transactions, holding keys, and moving real funds, usually with no guardrails at all. That's a brand-new attack surface, and your current security model wasn't built for it. Join us THIS WEDNESDAY for a deep technical session on securing autonomous agents, with Kevin Jones (@cryptomastery_), founder of @1clawAI and DevRel at @edgeandnode / @graphprotocol. What we're covering: • Why AI agents are a new class of attack surface • Giving an agent a leash (policy enforcement), a wallet (HSM-backed key custody), and a safety belt (pre-execution guardrails) • How @1clawAI secures the agent economy at scale • Practical patterns for builders shipping agents that touch real funds 🗓 Wednesday, June 17 🕔 17:00 IDT | 16:00 CET | 10:00 EDT 📡 Live on X, YouTube & LinkedIn If you're building or deploying onchain AI agents, this one goes straight to the core. Register: luma.com/web3devs_undergroun…

@or_sattath (BGU) opened with the optimistic side: public quantum money and one-shot signatures (Amos et al., Best Paper at Crypto), enabling "prudent contracts" and a Bitcoin upgrade path that eventually retires mining. @DesheShai followed with the migration plan. Front-running during the broadcast-to-confirmation window is the real near-term surface. In flight: BIP-360 (soft-fork ramp for new signatures), cryptographic canaries as on-chain tripwires, Lifted FawkesCoin (LFC) for recovering legacy and lost addresses, and BIP-361 (Jameson Lopp et al.) as the roadmap. Thanks to @CatoNetworks for hosting us into their breathtaking offices, @MasterkeyVC, and Mamram Alumni Association. Media partners: QUBIT-IL, @B7Blockchain, and @bengurionu. 📺 Recording: piped.video/watch?v=KEsmxB2-…

Quantum computers - the biggest threat to Bitcoin yet? 🚨 We are LIVE with Prof. @or_sattath and Dr. @DesheShai. Watch NOW right here on X ⤵️ nitter.net/i/broadcasts/1dGYllLLW…

Most people think the quantum threat to Bitcoin is simple: a quantum computer breaks the encryption and it's over. The truth is much more complex. We're proud Media Partners for @B7Blockchain's upcoming event on the topic. → Happening ONLINE in just TWO DAYs. luma.com/zky4uq3u?tk=tPf26Y What to expect → Dr. Shai (Deshe) Wyborski @DesheShai (expert in quantum cryptography, co-developer of the Lifted FawkesCoin protocol) will break down: - Why Bitcoin's decentralization is both its strength and its quantum vulnerability - Post-quantum migration: what's already being built (SHRIMPs, @StarkWareLtd's QSB, Commit-Delay-Reveal) - The real timeline and what it means for the network today Special guest: Prof. @or_sattath, one of the world's leading researchers in quantum cryptography and co-developer of the LFC protocol alongside Dr. Wyborski.

During our last live event, @buda_kyiv and Stephen Ajayi from @hackenclub broke down what happens when prompt injection meets DeFi agents. Here's 7 things from that session worth building into your architecture:

AMMs are ground zero for MEV → Sandwich attacks, front-running, and the hidden tax on every DeFi trade, all enabled by how transactions get ordered. But what if ordering itself could be fair by default? Join us THIS WEDNESDAY for a deep technical dive into CLVR, a mechanism that rethinks AMM transaction sequencing and eliminates sandwich attacks by design with @NChemaya of @BenGurionUni. What we're breaking down: • CLVR ordering vs. first-come-first-served • The anatomy of sandwich attacks and why AMMs are structurally vulnerable 🥪 • The math: batch auctions, uniform clearing prices, fairness/latency/throughput tradeoffs • How CLVR stacks up against commit-reveal, encrypted mempools, and SUAVE • Design implications if you're building an AMM, aggregator, or intent-based system 📅 Wednesday, May 13th 🕐 10:00 EDT | 16:00 CET | 17:00 IDT If you're building or auditing DeFi protocols, this one goes straight to the core. Register: luma.com/prhwjekn

🚨 AI is entering DeFi, and so are entirely new attack vectors. Are your smart contracts secure, or are you waiting to get rekt? 💥 Join us THIS WEDNESDAY for Under the Hood of Web3 Security hosted by @Web3_Devs × @hackenclub ! 🛡️ 🎤 Featuring @buda_kyiv (Founder @hackenclub ) 👾 Hands-on Workshop: Prompt Injection Meets DeFi with Stephen Ajayi! We are tearing down: 🔍 The Audit Process 💥 Real-world Exploit Anatomy 🧠 The Attacker Mindset 📅 April 29th | 10:00 AM EDT 🎟️ Secure your spot NOW: luma.com/sx1xj8ur

Excited to support more builders of the cryptography expansion

We are excited to invite you to join us for another Web3 Devs Underground event! 🔐₿ Two sessions. Two frontiers. One event. @Web3_Devs × @zama x @RitrekRecovery powered by @MasterkeyVC 📅 March 11th | 17:00 Israel Time | 16:00 CET | 10:00 EDT 📍 Live on X, YouTube & LinkedIn Register Here: luma.com/78qezjr0 Session 1 - FHE & Confidential Smart Contracts @poppyseedDev (Aurora Poppyseed), DevRel at @zama, breaks down how Fully Homomorphic Encryption (FHE) is bringing real confidentiality to the EVM - running computations on encrypted data without ever decrypting it. From private transfers to blind auctions, this is what on-chain privacy actually looks like. Session 2 - TimeLock Recovery for Bitcoin Backup @oren_z0 (Oren Zomer), Founder at @RitrekRecovery, walks through structured wallet recovery using Bitcoin Script - primary to secondary wallet, and what BIP-128 makes possible. Self-sovereign custody, done right. Two of the most technically dense topics in crypto infrastructure - in one session. Whether you're building on EVM or working with Bitcoin Script, this one's for you. 🔗 See full calendar: lnkd.in/dPBqaEMc @MasterkeyVC @SHAP0W @Amit_Masterkey @Web3_Devs @ELuttenberg789 @AlonKivity @al23xyz #Web3 #Bitcoin #FHE #Zama #ZeroKnowledge #BitcoinScript #Cryptography #Web3Dev #Blockchain #DeFi #SmartContracts #MasterkeyVC