blockchain-security
(10)
Fireblocks
Fireblocks began with a $200 million crypto heist and a stubborn question: how do you move digital money without handing attackers the keys? Eight years later, its answer has become an operating system for institutions moving value onchain.
Blockaid
Blockaid is a web3 security company that acts as a real-time trust layer for onchain finance, simulating and validating blockchain transactions before they execute to stop scams, drainers, exploits, fraud, and compliance risks. Its detection engines are embedded inside major wallets, exchanges, and protocols - including Coinbase, MetaMask, Uniswap, Stellar, and OKX - screening hundreds of millions of transactions a month and protecting hundreds of billions of dollars in digital assets. Founded in 2022 by former Israeli cyber-intelligence operators, the New York- and Tel Aviv-based company has raised roughly $89 million and is expanding from consumer wallet protection into institutional compliance infrastructure.
Veridise
Veridise is an Austin-based blockchain security company spun out of the UToPiA program-analysis research group at the University of Texas at Austin. It hardens Web3 by pairing expert human auditors with proprietary tools built on formal methods, fuzzing and program analysis. Veridise audits smart contracts, zero-knowledge circuits, blockchain implementations and dApps, and has completed 150+ audits for infrastructure protocols including Scroll, Linea, Succinct, Manta Network, RISC Zero and Semaphore.
Ido Ben-Natan
Ido Ben-Natan is the co-founder and CEO of Blockaid, a blockchain security company that protects crypto wallets, apps and users from scams and onchain exploits in real time. A veteran of Israel's Unit 8200 and the Office of the Prime Minister, where he led a cyber security R&D team and won the Israel Defense Prize, he launched Blockaid in 2022 to bring nation-state defensive expertise to Web3. The company is trusted by Coinbase, MetaMask, Kraken, Uniswap and Stellar, and has raised roughly $89 million from investors including Ribbit Capital, Sequoia, GV and Greylock.
Jon Stephens
Jon Stephens is the CEO and co-founder of Veridise, an Austin-based blockchain security firm that brings academic formal verification to smart contract and zero-knowledge audits. A computer science PhD researcher at UT Austin, he built tools like SmartPulse and Zequal that grew out of his work on formally reasoning about programs, and turned that research into a company that has audited protocols including RISC Zero, Succinct, Semaphore, vLayer and Ankr. His mission is to make everyday users secure without asking them to think about security at all.
Cubist
Cubist is a security-first Web3 infrastructure company that builds hardware-backed key management and confidential compute for digital assets. Its flagship platform, CubeSigner, keeps cryptographic keys sealed inside secure hardware (HSMs and AWS Nitro Enclaves) while giving developers low-latency signing through revocable sessions and a programmable policy engine - resolving the old tradeoff between cold-wallet security and hot-wallet speed. Founded by applied cryptographers and security researchers from Carnegie Mellon and UC San Diego who designed primitives underlying Ethereum and Avalanche, Cubist serves staking providers, DeFi protocols, bridges, and institutions building on internet capital markets.
Drosera Network
Drosera Network is a decentralized incident response protocol that aims to be an 'immune system for Ethereum.' It lets DeFi protocols deploy 'Traps' - small, off-chain-defined smart contracts that continuously monitor on-chain state, detect anomalies or exploits, and trigger automated emergency responses (like pausing functions) before an attack drains funds. A decentralized network of Operators watches those Traps and pushes verified responses on-chain, turning security from an after-the-fact audit into a live, programmable defense layer.
Coincover
Coincover is a UK-based digital asset protection company that helps institutions and their customers hold and recover cryptocurrency safely. Founded in 2018 in Cardiff, it pioneered the wallet disaster recovery category, offering encrypted key backup, automated recovery, fraud detection and theft protection that integrate directly into exchanges, custodians, banks and wallet providers. Coincover has protected over 22 million wallets, safeguards 600+ businesses, and works with names like BitGo, Fireblocks, Ledger, Gemini and Ripple.
Fernando Reyes
Fernando Reyes, known on-chain as FDR, is the founder and CEO of Drosera Network, a decentralized incident response protocol building what he calls an 'immune system' for Ethereum. A former US Army Cyber Protection Brigade operative, he also founded Groom Lake, a Web3 security firm staffed by ex-military and intelligence personnel that hunts hackers and recovers stolen crypto. In February 2025 Drosera raised $4.75M led by Greenfield Capital to ship its 'Traps' technology - customizable Solidity smart contracts that detect and neutralize exploits before they spread.
Riad Wahby
Riad Wahby is the co-founder and CEO of Cubist, a key management infrastructure company building hardware-backed, policy-driven signing for Web3. He is also an assistant professor of Electrical and Computer Engineering at Carnegie Mellon University and an applied cryptographer known for co-inventing the proof systems Lasso, Hyrax, and Brakedown and co-authoring the BLS signature standard (RFC 9380) used across Ethereum, Avalanche, and other chains. Before academia and entrepreneurship he spent a decade designing analog and mixed-signal chips at Silicon Labs and researched cryptography at Algorand.