Building the most secure crypto wallet infra @onchainden

Joined June 2019
745 Photos and videos
Pinned Tweet
17 Jan 2023
In the midst of our @ConstitutionDAO defeat, an idea was born Onchain teams need to be 10x faster to win and transition the world to a crypto-native economy From that idea, we built a product securing over $80M for more than 180 teams Today, we're sharing it with the world 👇
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You should be able to Google something the old fashioned way.
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Excellent post on how to safely use a multisig given today's status quo Unfortunately, as an industry we've focused on adding more process to mitigate security risks, and process is easy to screw up We need to eliminate these risks at the source More on this soon...
May 27
Just using a multisig is NOT enough. How a multisig is configured can be the difference between getting rekt or not. Yearn has spent a lot of time thinking about this very real risk. Today, we share 3 crucial steps for good multisig strategy 🧵
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Smart contracts have a limited, immutable surface area Smart contract hacks will trend to zero as agents get better at securing them The risk will live everywhere around the contracts. Cloud infra, key management, etc
PSA: I now consider *all* of DeFi unsafe. Coding agents are superhuman at finding vulnerabilities, and smart contract security is too asymmetric: defenders need to fix every bug while attackers need just one exploit to steal funds.
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Join us to work on the most important problem in crypto today: secure wallet infrastructure MPC and multisigs aren't cutting it anymore as attackers get more sophisticated and aggressive At Den, you'll help build something fundamentally more secure
Den just blew past $10B in transaction volume, and we're sprinting towards $100B Now we're hiring our next Full Stack Engineer to help us scale Join our team to ship features end-to-end across web and mobile, helping the world's largest organizations secure their stablecoins and crypto Apply below 👇
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Time for an upgrade Let's go blue!
Per docs released in the OAI/Musk case, the University of Michigan endowment invested $20 million in the first round of OpenAI. Best direct investment from an endowment of all time?
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Jonah Erlich retweeted
Apr 23
We are excited to announce that @3f_xyz has raised $4 million in seed funding led by @Maven11Capital, with participation from @FPrimeCapital, @MetalayerVC, @GSR_io, Susquehanna Crypto, @Gate_Ventures and others. 3F is building the onchain infrastructure that unlocks leveraged exposure to tokenized real-world assets.
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Jonah Erlich retweeted
Apr 15
i got tired of this bullshit so i made a website showing how many people are dying because we haven't legalized self-driving cars yet we have a moral imperative to get human drivers off the road ASAP.
NEW: If Waymo gets its way, 2 million workers will be out of work. When Waymo gets a firm hold on a city, wages go down. Some drivers now have to work 12 hours day, 7 days a week just to get by. This isn't inevitable — but Big Tech is spending millions to make you think it is.
Community note
Waymo data (170M miles) shows a 92% reduction in serious injury/fatal crashes vs human drivers. While the post claims 2M jobs will be lost, BLS projections show transportation sector growth. Safety tech historically shifts labor roles rather than eliminating total employment waymo.com/blog/shorts/wa… bls.gov/news.release/p…
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Den will be at @blockworksDAS next week. We'll be speaking with Fintechs, Banks, Enterprises, and others about secure digital asset wallets. If you're interested in learning how you can stay safe with state-sponsored groups like Lazarus on the hunt - let's meet.
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Jonah Erlich retweeted

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I can’t believe I got Rick Rolled in 2026
After 1.5 BILLION views, YouTube took the rick roll song offline and now I'm not sure what to do with my life. youtube.com/watch?v=dQw4w9Wg…
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Jonah Erlich retweeted
Made a mini-kanban board to help me help Openclaw keep track of tasks and delegation (link below) It's styled like OpenClaw, but feels like a lite Linear without the added tool context! The instructions assume that you’re setting up openClaw on a device with Tailsafe to view the page remotely, but Opus or codex can work around that. Feedback is appreciated!!
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Got all my furniture set up
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Jonah Erlich retweeted
The hardest part about building a product in 2026 is not actually building a product. It's getting attention.
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Jonah Erlich retweeted

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Jonah Erlich retweeted
Launching a new podcast today! Filmed at our NYC office, each episode of @Archive_Pod focuses on a founder or operator who has built an important crypto business/protocol. The first episode is with @keoneHD, founder of @monad. We dive into Keone’s upbringing, the early days of Monad and the journey to raising the seed round. Plus, we talk about recruiting scaling the team, and the philosophies they used to launch and grow the network. Here's what we discussed: 0:00 - Intro 0:42 - Altitude 1:32 - Monad's Launch 4:25 - Keone’s early life and interests 16:52 - Where Keone’s work ethic came from 19:52 - Working at Jump and how the culture passed on to Monad 24:26 - Starting Monad 30:05 - Raising the seed round for Monad 32:29 - Growing the Monad community and open-sourcing code 36:35 - How Keone hired for the early team 44:07 - The future of Category Labs 51:26 - Which metrics is Monad focusing on 1:00:24 - Building a base of loyal and passionate users 1:07:45 - The personality of an L1 founder 1:13:46 - Founders that Keone looks up to 1:18:34 - Day in the life of Keone 1:23:57 - The endgame vision for Monad
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Jonah Erlich retweeted
Mewler is now open to the public. Earn, lend, and borrow are live. 😻
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Stablecoin payments would save the MTA $50M per year at full scale
Would be funny if MTA entered the stablecoin business simply by enabling peer-to-peer payment with OMNY dollars Transactions have ~zero marginal cost if you're transacting *within* the OMNY ledger (i.e. not paying interchange fees to Visa to bring in outside dollars)
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Jonah Erlich retweeted
16 Dec 2025
HypurrFi is the exclusive partner bringing @EulerFinance to @HyperliquidX.
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12 Dec 2025
Weird Al reversal
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