Blockchain & Crypto Security Advisory | Digital Asset Risk

Blockchain & Crypto Security Services

As blockchain security and crypto security threats evolve alongside digital asset adoption, NSI Global delivers consulting-only services that safeguard your infrastructure, smart contracts, and executive digital identities, without reliance on managed infrastructure or on-premise tools or product deployments.

We help fintechs, exchanges, family offices, and high-net-worth-individuals protect value and reputation in decentralised environments, combining deep strategic insight with technical diligence across DeFi, tokenisation, and Web3 ecosystems.

Our Services Include

Smart Contract Security Audit & Risk Advisory

Uncover exploitable flaws before deployment or post-breach. We audit smart contract logic, external call handling, and oracle interactions to mitigate loss and manipulation.

Executive Digital Asset Protection

Secure wallets, seed phrases, and on-chain activity tied to executives and private wealth. Our approach to executive digital protection blends cyber hygiene with compartmentalised access and risk isolation.

Crypto Investigations & Forensics

Trace digital asset movement across blockchains, investigate insider abuse or phishing, and support legal recovery through chain analysis and forensic reporting.

DeFi & Exchange Exposure Assessment

Evaluate risks in exchange integrations, liquidity pools, and DeFi smart contract interactions to ensure layered protections and transparency.

Custodial & Non-Custodial Risk Advisory

Assess the structure and governance of wallet setups, including hot, cold, multi-sig, or custodial configurations, for operational and legal resilience.

Adversary Emulation for Blockchain Protocols

Simulate real-world attacks tailored to Web3 systems, including flash loan exploits, phishing campaigns, rug pulls, and governance manipulation - all without product dependencies.

Adversary Emulation & Red Teaming Services

Blockchain Threat Intelligence

Monitor blockchain-specific threats such as darknet-enabled scams, phishing kits, token impersonation, and fraud linked to your brand or address.

Who We Work With

Crypto exchanges, DeFi platforms, and digital asset custodians
Fintech and Web3 Startups entering or scaling
HNWIs, Private Offices, and executives holding or transacting in digital assets
Traditional financial institutions exploring tokenised asset models

Why NSI Global?

Independent advisory model - no software, no hardware, no bias

Integrated expertise across cyber security, financial forensics, and blockchain ecosystems

Trusted by clients with high privacy, regulatory, and reputational demands

Secure Your Digital Assets

Speak to our blockchain security advisors today by filling out the form. We offer confidential consultations in person or via encrypted WebEx to help you navigate today’s blockchain threat landscape.

1300 000 NSI (674)