Blockchain, DeFi & Wallet Security
Smart-contract audits, wallet protection and quantum-ready cryptography for digital assets.
At a glance
Blockchain, DeFi & Wallet Security
Digital assets demand specialist protection. We audit smart contracts, secure blockchain nodes and infrastructure, harden wallet authentication and key management, and explore quantum-resistant cryptography to future-proof your platform — protecting against theft, fraud and ransomware targeting digital assets.
Is this you?
- Smart-contract vulnerabilities leading to loss of funds
- Insecure key management and wallet access
- Phishing targeting wallet users
- Regulatory expectations for virtual-asset service providers
Scope & deliverables
Smart-contract security audit
Wallet architecture, key management and custody review
Node and infrastructure hardening
Anti-phishing and transaction-monitoring controls
Quantum-readiness assessment
Regulatory alignment support
How we deliver
Scope
Contracts, wallets, nodes and integrations.
Review
Manual and automated analysis.
Test
Exploit scenarios and economic attacks.
Report
Findings, severity and fixes.
Verify
Re-audit and ongoing monitoring.
Aligned to the standards that matter
Tools & technology
Flexible ways to work with us
Fixed-scope project
Defined scope, timeline and deliverables — ideal for a first assessment or audit.
Retainer
A reserved block of expert hours per month for ongoing advisory and reviews.
Embedded / interim
A Cybersense lead embedded in your team for a programme or transition.
What success looks like
Contracts deployed with confidence
Protected keys and wallets
Reduced fraud and phishing loss
Future-ready cryptography roadmap
Related projects
Frequently asked questions
Do you audit smart contracts on all chains?
We focus on EVM-compatible chains.
Often combined with
Secure Software Development
Secure-by-design engineering that protects your applications, APIs, AI and smart contracts.
ExploreInnovateAI Security & AI-Driven Defence
Protect your AI systems from adversarial attacks — and use AI to predict and counter new threats.
ExploreOperateProactive Threat Intelligence
Actionable intelligence on the actors, campaigns and vulnerabilities targeting your sector.
ExploreDiscuss Blockchain, DeFi & Wallet Security with an expert
Tell us about your environment and objectives — we will propose a scope, timeline and engagement model that fits.