The shift on-chain is happening. We take institutions from intent to assurance: secure, compliant, and ready for what comes next.
A New Financial Reality
The original vision of Web3 was explicit: decentralised, permissionless, trustless. Designed to operate without banks, without intermediaries, without institutional gatekeepers. That vision shaped the architecture, the culture, and the security assumptions of an entire industry.
That era is ending. Asset managers, custodians, payment processors, and sovereign wealth funds are moving capital on-chain. Traditional financial institutions are not observing from a distance. They are deploying. The convergence is happening now, and it is irreversible.
What no one fully anticipated is what this collision creates. Two security cultures, built on entirely different threat models, now operating within the same infrastructure. Institutional compliance frameworks were not designed for smart contract logic or on-chain transaction finality. Web3 security assumptions were not built for regulatory obligations, governance structures, or counterparty expectations of traditional finance.
Something genuinely new is being built at this intersection. It requires security assurance that understands both sides. Regulators are not waiting. Incoming compliance measures are not proposals. They are live mandates. Security is no longer a matter of what is responsible. It is a matter of what is legally required.
We are redefining what Web3 Security means for a maturing industry that now has to meet institutional standards. That is the model we were built around.
Institutions entering on-chain infrastructure represent a convergence never envisioned by the original Web3 architects. The security architecture to support it is being defined in real time.
DORA, MiCA, VARA, and DASP are live regulatory frameworks. Independent security reviews and documented operational resilience are now legal requirements, not best practice.
We were built for this moment, having years of experience within both defending critical infrastructure and the blockchain from attacks. Institutional-grade security disciplines applied to on-chain infrastructure, positioned at the intersection of two converging worlds.
SERVICES
Real security is not a single point of review. It spans people, processes, and technology - every layer of the attack surface, on-chain and off. We apply our adjusted PPT framework, originally developed for IT service management, as the foundation for comprehensive end-to-end security assurance.
Your biggest attack surface isn't your code.
In 2026, DPRK-linked attackers posing as a quant trading firm first approached Drift Protocol contributors at crypto conferences. Over six months they deposited real capital, joined strategy calls, and attended global events to build genuine trust. That trust got Security Council members to blind-sign pre-staged transactions. Admin control transferred silently. $285 million drained in hours. Twenty partner protocols fell with it.
Security is a discipline, not a deployment.
In 2025, Bybit lost $1.5 billion after Lazarus Group compromised the Safe multi-sig interface. Three authorised signers approved what looked like a routine transfer. The malicious payload was hidden beneath a legitimate-looking UI. Blind signing is a broken process.
Secure the code. Protect the keys.
In 2022, Wormhole lost $320M in minutes. A deprecated Solana function, left callable after a code upgrade, let an attacker mint 120,000 wETH without depositing a single dollar. One missed line. No pre-deployment audit caught it.
PARTNERS
We work alongside rigorously vetted, specialist security firms to deliver institutional-grade on-chain security services.
About
Founder & Lead Security Consultant
Experienced within the cybersecurity and defence industry, building security guidance for some of the most demanding environments imaginable. Turning his attention to blockchain, he recognised an industry with enormous potential that had systematically overlooked the operational security disciplines taken for granted elsewhere. Convinced that scale without institutional-grade security is a liability, he founded Security4Web3 to define what rigorous, professional security looks like at the convergence of traditional finance and on-chain infrastructure.
Security Engineer & Emerging Threat Lead
Security engineer for partner firm responsible for the development of specialist security measures and head of the firm's emerging threat prevention programme. Wladimir leads quantum readiness research and the implementation of post-quantum cryptographic defences ahead of the approaching cryptographic transition.
Projects secured by smart contract audit firms our team have worked with.
Our Purpose
No other industry moves this volume of capital through infrastructure with so many unaddressed security gaps. We exist to change that.
In other industries such as defence, or traditional finance, one principle is absolute: Full end to end security is not optional. In classified and high risk environments, the consequences of a key compromise or a process failure are catastrophic, and exactly the same is true in blockchain.
The $1.46bn Bybit hack, the largest in crypto history, was not a smart contract exploit. It was a signing key compromise. The $625m Ronin Bridge breach was a private key theft. These are not novel attack vectors. They are operational failures that institutional-grade security disciplines exist specifically to prevent.
The gap isn't just technical. Most protocols launch with no meaningful operational security posture at all. Security4Web3 was built to close both layers: the code and the people running it.
Traditional institutions exploring or migrating to blockchain face a threat landscape that shares some familiar characteristics: phishing, insider threats, key compromise...but also fundamentally different attack surfaces: smart contract logic, on-chain transaction irreversibility, decentralised key custody, and protocol-level exploits that have no equivalent in traditional finance. Navigating that safely requires expertise in both worlds.
Start a Conversation →Every significant breach had the potential to be prevented. We work proactively: before deployment, before mainnet, before an adversary identifies the vulnerability first. AI-assisted reconnaissance now enables attackers to surface and exploit weaknesses at a pace that demands early, structured intervention.
From classified defence environments to DeFi protocols. Operational security carries. Private key management, signing processes, access controls. These aren't blockchain-specific problems; they're disciplines which should carry over.
Smart contract bugs get the headlines, but operational failures often get the billions. A complete security posture covers both the code and the people running it.
Regulatory Compliance
The regulatory landscape for digital assets is maturing fast. Traditional institutions demand regulatory clarity before committing capital on-chain. Blockchain-native firms scaling toward institutional adoption need to demonstrate it. Our security reviews are structured to evidence compliance with the frameworks that matter.
Digital Operational Resilience Act
Mandates ICT risk management, incident classification and reporting, digital operational resilience testing (TLPT), and third-party provider oversight for financial entities operating within the EU. In force from January 2025.
Markets in Crypto-Assets Regulation
Establishes authorisation, governance, and operational resilience requirements for crypto-asset issuers and CASPs. Includes obligations around cybersecurity, business continuity, and security of client assets. Fully applicable from December 2024.
Virtual Assets Regulatory Authority
Dubai's dedicated regulatory authority for virtual asset service providers. VARA requires robust cybersecurity frameworks, formal technology governance, regular independent security assessments, and documented incident response procedures.
Digital Asset Service Provider
France's AMF registration and licensing regime for digital asset service providers. Requires documented cybersecurity policies, operational controls, secure asset custody procedures, and evidence of regular security testing as part of the authorisation dossier.
Answers for Decision-Makers
The questions institutions and security leads ask us before engaging, and the answers that inform confident decisions.
Yes. Our security reviews are structured to generate the documented evidence regulators require. DORA mandates digital operational resilience testing (TLPT) and ICT risk management frameworks. MiCA requires cybersecurity controls and business continuity plans. VARA demands regular independent security assessments. DASP requires documented security policies and evidence of regular testing. Our OpSec Reviews, smart contract audits, and penetration tests produce formal written reports that satisfy these requirements, whether you are seeking authorisation, undergoing regulatory review, or preparing for a competent authority audit.
Security4Web3 is a specialist security consultancy. We work with two distinct audiences: blockchain-native protocols securing their on-chain infrastructure, and institutions exploring or migrating to blockchain services who need to navigate a threat landscape that is partly familiar and partly unlike anything in conventional finance.
Services are delivered through our internal consultancy team and a curated network of specialist partner firms we have rigorously vetted for technical depth, professional standards, and integrity. In a space where it is genuinely difficult to assess who can be trusted, that vetting is part of the value we provide. Across all three security pillars, our focus is prevention before incidents occur.
Our Operational Security Reviews cover private key and seed phrase management, multi-sig wallet configuration, insider threat assessment, social engineering risk, secure key ceremony design, and incident response planning. You receive a full written report with risk ratings and prioritised remediation steps.
A smart contract audit is a deep code review that identifies vulnerabilities in your on-chain logic before deployment: static analysis, business logic flaws, and economic attack surfaces. A penetration test goes further by actively simulating real attacks against your live infrastructure, frontend, APIs, and protocol to find exploitable weaknesses under realistic conditions.
The pattern repeats: institutions underestimate how different on-chain risk is from their existing threat model. Private key compromise is one of the most common failures, often through phishing, insider access, or inadequate custody design, and accounts for the majority of significant losses. The Bybit hack ($1.46B) and Ronin Bridge exploit ($625M) were both rooted in compromised signing keys, not code vulnerabilities. Other recurring failures include insufficient segregation of duties in signing workflows, legacy IT systems connected to on-chain infrastructure, and the absence of full API/RPC security coverage. These are not exotic risks - they are risks which when correctly identified, can be mitigated by robust specialists in each area of the security stack, which is where we come in, with our vetted network of internal security specialists and our partners.
Internal security functions are essential, but on-chain security requires expertise that very few conventional teams possess. Smart contract logic, on-chain transaction finality, decentralised key custody, and DeFi protocol interactions are fundamentally different from the threat surfaces your team is accustomed to reviewing. Beyond capability, there is the question of independence: regulators, counterparties, and boards require third-party assurance that cannot be self-certified. Our reports are structured to provide exactly that — documented, independent evidence of security controls, suitable for regulatory submissions and governance review.
Typically we can begin an initial scoping call within 48 hours of your enquiry. Timelines for full engagements depend on scope. OpSec reviews can be completed in 1–2 weeks, audits and pentests in 2–4 weeks. Reach out via the contact form or Telegram and we'll confirm availability promptly.
Follow us on X and LinkedIn for on-chain security intelligence, threat analysis, and regulatory developments across digital asset markets.
Not found what you need? Speak directly with our team. We respond to all serious enquiries within 24 hours.
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Whether you are exploring your first on-chain move or hardening an existing operation, we are ready to help. Reach out and we will respond promptly.
