We secure blockchain-native protocols and traditional institutions making their move on-chain. The threat landscape spans both worlds, and so do we.
SERVICES
Securing blockchain isn't just about smart contracts. Real security covers your people, your processes, and your technology. Every layer, to protect against the entire attack surface. The PPT model was originally intended for IT service process, however we have adapted this specifically for Blockchain security.
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 trusted, specialist security firms to deliver world-class Web3 security services.
About
Founder & Lead Security Consultant
Experienced working in cybersecurity within the defence industry, building security frameworks for some of the most demanding environments imaginable. Then, when he turned his attention to blockchain, he saw an industry with enormous potential, but one where security was an afterthought. Convinced that scale without security was a liability, he founded Security4Web3 to help define what baseline secure should look like in an emerging industry, in order to "Secure the Future of Web3".
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 much capital through infrastructure that so few truly understand from a security perspective, technically or operationally. We exist to fix those overlooked areas, before the next hack happens.
In other industries such as defence, or traditional finance, one principle is absolute: operational 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 aren't 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 major hack had potential to be preventable. We work proactively: before deployment, before mainnet, before the attacker finds the gap first. With the rise of AI scanning during Open-Source-Intelligence (OSINT), hackers can discover and exploit vulnerabiltiies faster than ever before, we don't want you to become that low hanging fruit.
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.
Your Guide to Quick Answers
Everything you need to know about Web3 security, our services, and how we can help protect your project.
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 most common vectors are social engineering (phishing, impersonation, insider threats), insecure key storage (plaintext backups, cloud exposure), weak multi-sig configurations, and compromised signing workflows. The Bybit hack ($1.46B) and Ronin Bridge exploit ($625M) were both rooted in compromised signing keys, not code bugs. Operational security failures are now the leading cause of catastrophic Web3 losses.
Yes: attackers don't discriminate by TVL. Many high-profile exploits began on smaller protocols where attackers tested and refined techniques. Early-stage projects are often targets precisely because security is deprioritised. An OpSec review at launch costs a fraction of what a single incident could cost in lost funds, reputation, and legal exposure.
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 Web3 security insights, threat intelligence, and industry news. Join the conversation.
Can't find what you're looking for? Send us a message directly and we'll get back to you within 24 hours.
Get in TouchContact
Ready to secure your Web3 project? Reach out and we'll get back to you promptly.
