Institutional-Grade Wallet Security Solutions: Protect Your Digital Assets from Core to Edge.
In the world of digital assets, security isn't a feature—it's the foundation.
We build impenetrable, compliant, and user-friendly wallet security systems that safeguard your reputation and your users' funds.
Recognized for Excellence, Trusted by Leaders
Why Partner with Errna for Wallet Security?
We don't just build walls; we build fortresses. Our approach combines decades of enterprise security experience with deep Web3 expertise to provide wallet solutions that are not only secure but also compliant and scalable.
Decades of Security Expertise
Leverage our battle-hardened experience since 2003. We apply proven enterprise-grade security principles to the unique challenges of the decentralized world, protecting you from both known and emerging threats.
CMMI 5 & ISO Certified Processes
Our commitment to quality and security is verifiable. We adhere to the strictest international standards, ensuring our processes are mature, repeatable, and designed for maximum security and efficiency.
AI-Powered Threat Intelligence
Stay ahead of attackers with our AI-driven security monitoring. We analyze patterns across millions of transactions to predict and neutralize threats before they can impact your platform or your users' assets.
Full-Spectrum Compliance
Navigate the complex regulatory landscape with confidence. We build KYC/AML capabilities directly into your wallet infrastructure, ensuring you meet global compliance standards from day one.
End-to-End Solution Ownership
From initial architecture design and threat modeling to implementation and ongoing monitoring, we provide a holistic security partnership. You get a single, accountable team for your entire wallet security lifecycle.
Vetted, In-House Experts Only
We never outsource your security. Our team consists of 100% in-house, rigorously vetted cybersecurity professionals, ensuring consistency, accountability, and the highest level of expertise.
Proven Fortune 500 Trust
Our track record speaks for itself. We are trusted by global leaders like Nokia and eBay to handle their critical infrastructure. We bring that same level of diligence and excellence to your Web3 project.
Future-Proof Architecture
We design for tomorrow's threats, not just today's. Our solutions incorporate forward-looking strategies to protect against emerging risks like quantum computing and sophisticated AI-driven attacks.
Transparent Partnership
Security should not be a black box. We work as an extension of your team, providing clear communication, detailed reporting, and a collaborative approach to building and maintaining your digital asset fortress.
Our Comprehensive Wallet Security Services
We offer a multi-layered suite of services designed to protect digital assets at every point of vulnerability. From foundational architecture to advanced threat mitigation, we provide complete peace of mind.
Multi-Signature (Multi-Sig) Wallet Architecture
We design and implement robust multi-signature wallet systems that require multiple parties to authorize a transaction. This eliminates single points of failure and provides a powerful defense against theft, collusion, and key compromise. Our architectures are customized for your specific operational needs, balancing security with usability for both hot and cold storage solutions.
Key Outcomes
- Eliminate Single Points of Failure: Ensures no single person or compromised device can move funds unilaterally.
- Enhanced Internal Controls: Enforce corporate governance policies by requiring approvals from multiple stakeholders for large transactions.
- Drastically Reduced Theft Risk: Makes it exponentially harder for external attackers or malicious insiders to steal funds.
Hardware Security Module (HSM) Integration
For the highest level of private key protection, we integrate enterprise-grade Hardware Security Modules. HSMs are specialized, tamper-resistant hardware devices that securely store cryptographic keys and perform signing operations within a protected environment. This ensures your most critical keys never touch general-purpose servers or networks, making them immune to software-based attacks.
Key Outcomes
- Physical Key Protection: Private keys are generated, stored, and used exclusively within the secure HSM hardware.
- Meet Stringent Compliance: Satisfy regulatory and audit requirements for institutional-grade key management (e.g., FIPS 140-2).
- Automated & Secure Signing: Enable high-speed, automated transaction signing without exposing keys to vulnerable software environments.
Secure Key Generation & Management
The entire lifecycle of a cryptographic key is a potential vulnerability. We implement secure, audited processes for key generation, distribution, rotation, and revocation. Our solutions use certified sources of entropy and follow NIST best practices to ensure your keys are strong, unpredictable, and managed securely throughout their existence.
Key Outcomes
- Cryptographically Strong Keys: Guarantees keys are generated with sufficient randomness to be unguessable.
- Reduced Risk of Compromise: Secure lifecycle policies prevent key leakage during storage, transit, or use.
- Disaster Recovery Capability: Implement secure backup and recovery procedures to prevent loss of funds in case of hardware failure.
Wallet Penetration Testing
We simulate real-world attacks on your wallet infrastructure, from the mobile/web application layer down to the backend APIs and key storage systems. Our ethical hackers use the same techniques as malicious actors to identify and exploit vulnerabilities before they can be discovered externally. You receive a detailed report with actionable recommendations for remediation.
Key Outcomes
- Identify Hidden Vulnerabilities: Uncover security flaws in your code, configuration, and infrastructure.
- Validate Security Controls: Test the effectiveness of your existing security measures against a determined adversary.
- Gain Actionable Insights: Receive prioritized, clear guidance on how to fix identified weaknesses and improve your security posture.
Smart Contract Audits for Wallet Interactions
Modern wallets increasingly interact with complex smart contracts for staking, DeFi, and other Web3 functions. We audit all smart contracts that your wallet connects to, identifying vulnerabilities like reentrancy, integer overflows, and flawed business logic that could be exploited to drain funds from your users' wallets or your platform's treasury.
Key Outcomes
- Prevent Protocol-Level Exploits: Secure your platform against attacks targeting the logic of underlying smart contracts.
- Protect User Funds: Ensure that interactions with third-party dApps are safe and won't result in asset loss for your users.
- Build Ecosystem Trust: Demonstrate to users and partners that your platform is built on a foundation of audited, secure code.
Threat Modeling & Risk Assessment
Before a single line of code is written, we work with you to map out your entire wallet system, identify potential threats, and assess their risk. This proactive process allows us to design security controls from the ground up, addressing potential attack vectors like insider threats, API abuse, and supply chain attacks, ensuring a fundamentally secure architecture.
Key Outcomes
- Security by Design: Build security into the core of your product, which is far more effective and cheaper than adding it later.
- Prioritize Security Investments: Focus resources on mitigating the most significant and likely threats to your specific system.
- Comprehensive Threat Visibility: Understand all potential ways your system could be attacked, enabling a holistic defense strategy.
Anti-Money Laundering (AML) & KYC Integration
We integrate leading AML and Know-Your-Customer solutions directly into your wallet's onboarding and transaction flows. Our systems help you comply with global regulations by verifying user identities, screening against sanctions lists, and monitoring transactions for suspicious activity, protecting your platform from illicit use and regulatory penalties.
Key Outcomes
- Achieve Regulatory Compliance: Meet legal requirements for financial institutions and virtual asset service providers (VASPs).
- Prevent Illicit Activity: Block sanctioned individuals and detect money laundering patterns to protect your platform's integrity.
- Enable Fiat On/Off Ramps: Secure the banking partnerships necessary to allow users to buy and sell crypto with traditional currency.
Real-Time Fraud Detection & Alerts
Using AI and machine learning, we build systems that monitor wallet activity in real-time to detect and flag fraudulent behavior. This includes identifying account takeovers, unusual transaction patterns, and attempts to exploit system rules. Instant alerts allow your team to intervene immediately, freezing accounts and preventing fund loss.
Key Outcomes
- Stop Attacks in Progress: Intervene before a fraudulent transaction is confirmed on the blockchain.
- Reduce Financial Losses: Minimize the impact of fraud and account takeovers on your users and your business.
- Adaptive Security: Our AI models learn from new attack patterns, continuously improving their detection capabilities.
Secure MPC (Multi-Party Computation) Solutions
As an alternative to traditional multi-sig, we implement cutting-edge MPC technology. MPC allows multiple parties to jointly compute a signature without ever creating a whole private key in one place. This provides superior security against key theft and offers greater flexibility for complex signing policies and faster transaction processing.
Key Outcomes
- No Single Point of Failure: A complete private key never exists, making it impossible to steal.
- Blockchain Agnostic: MPC works with any blockchain protocol, providing a unified security model for all your assets.
- Enhanced Privacy & Speed: On-chain transactions look like standard single-signature transactions, improving privacy and reducing fees.
Cross-Chain Bridge Security Audits
Cross-chain bridges are a primary target for hackers, responsible for billions in losses. If your wallet interacts with bridges, we provide specialized security audits that focus on their unique attack surface. We analyze the bridge's smart contracts, validator security, and off-chain components to prevent catastrophic exploits.
Key Outcomes
- Prevent Massive Fund Loss: Secure one of the most vulnerable pieces of Web3 infrastructure.
- Ensure Interoperability Safety: Allow users to move assets between chains safely and with confidence.
- Protect Your Reputation: Avoid the massive reputational damage that comes with a high-profile bridge hack.
Incident Response & Forensics
In the event of a security incident, a swift and expert response is critical to minimize damage. We provide 24/7 incident response services, helping you contain the threat, understand the attack vector, and recover assets where possible. Our forensics team analyzes on-chain and off-chain data to trace stolen funds and provide evidence for law enforcement.
Key Outcomes
- Minimize Financial Damage: Act quickly to contain breaches and prevent further losses.
- Rapid Recovery: Get your systems back online securely and quickly after an attack.
- Actionable Post-Mortem: Understand exactly how the breach occurred and implement measures to prevent it from happening again.
Gas Optimization Security Review
While optimizing smart contracts for lower gas fees is important, it can sometimes introduce security vulnerabilities. Our experts review your gas optimization techniques to ensure they don't create unintended side effects, such as making your contracts susceptible to reentrancy attacks or breaking important security invariants. We help you find the right balance between efficiency and security.
Key Outcomes
- Secure Efficiency: Reduce transaction costs for your users without compromising on safety.
- Avoid Optimization Pitfalls: Prevent common security mistakes made when trying to minimize gas consumption.
- Build Robust Contracts: Ensure your code is both efficient and resilient against attacks.
Phishing & Social Engineering Defense
Often, the weakest link is the human element. We help you protect your users and employees from sophisticated phishing and social engineering attacks designed to steal credentials and private keys. This includes user education campaigns, implementing security best practices like hardware wallet support, and designing interfaces that clearly warn users of risky actions.
Key Outcomes
- Protect Your Users: Reduce the number of users who fall victim to scams that can drain their wallets.
- Secure Your Admin Team: Prevent attackers from gaining internal access by tricking your employees.
- Strengthen Brand Trust: Show users you are actively working to protect them from the wider ecosystem of threats.
Cloud Security for Wallet Infrastructure (AWS/Azure)
Your wallet's backend infrastructure is a critical part of its security. We are certified experts in securing cloud environments like AWS and Azure. We configure your cloud infrastructure according to security best practices, implementing proper IAM roles, network segmentation, encryption, and logging to protect your servers and databases from compromise.
Key Outcomes
- Prevent Server-Side Breaches: Secure the off-chain components that support your wallet operations.
- Harden Your APIs: Protect against attacks targeting the communication between your wallet app and your backend.
- Leverage Cloud-Native Security: Utilize powerful security tools like AWS KMS and Azure Key Vault for enhanced protection.
Quantum Computing Threat Preparedness
While still on the horizon, the threat of quantum computers breaking current cryptographic standards is real. We help you future-proof your wallet solutions by developing a roadmap for migrating to post-quantum cryptography (PQC). This includes identifying quantum-vulnerable components and planning for the adoption of new, quantum-resistant algorithms.
Key Outcomes
- Long-Term Asset Protection: Ensure the assets you secure today remain secure in the quantum era.
- Stay Ahead of the Curve: Position your platform as a forward-thinking leader in security.
- Strategic Migration Plan: Develop a clear, actionable plan to transition to quantum-safe standards with minimal disruption.
Proven Results in Digital Asset Protection
We don't just talk about security; we deliver it. Explore how we've helped leading crypto platforms build resilient, compliant, and trusted wallet solutions.
"Errna's team transformed our security posture. Their expertise in HSMs and multi-sig architecture was second to none. We now operate with a level of confidence that was previously unattainable."
Client Overview
ExchangeFlow is a rapidly growing mid-tier cryptocurrency exchange serving over 500,000 users. Their primary concern was the security of their hot wallet system, which held a significant amount of user funds to ensure liquidity but represented a major target for attackers.
Key Challenges
- A single, monolithic hot wallet created a massive single point of failure.
- Manual processes for moving funds between hot and cold storage were slow and prone to human error.
- Lack of hardware-level security made their private keys vulnerable to sophisticated malware.
- Inability to scale transaction volume without increasing security risks.
Our Solution
We engineered a comprehensive wallet infrastructure overhaul focused on minimizing risk and automating security.
- Designed and deployed a distributed hot wallet system using multi-signature (3-of-5) technology.
- Integrated enterprise-grade Hardware Security Modules (HSMs) to ensure private keys were never exposed online.
- Developed an automated treasury management system that dynamically moved funds between hot, warm, and cold wallets based on preset liquidity thresholds.
- Implemented strict access controls and real-time monitoring with automated alerts for any suspicious activity.
"The audit from Errna was the best investment we ever made. They found a critical flaw that our internal team and other auditors missed. They literally saved our protocol and our community's funds."
Client Overview
LendSecure is an innovative DeFi lending protocol with over $50 million in Total Value Locked (TVL). Before their public launch, they required a final, rigorous security audit to ensure the safety of user funds held in their smart contracts.
Key Challenges
- Complex smart contract interactions created a large and intricate attack surface.
- Pressure to launch quickly led to the potential for overlooked security flaws.
- A single vulnerability could lead to the instantaneous and irreversible loss of all user deposits.
- Need to build trust with the DeFi community, which is highly skeptical of unaudited platforms.
Our Solution
Our elite team of smart contract auditors conducted a multi-faceted analysis, combining automated scanning with deep manual code review.
- Performed a line-by-line manual review of the entire Solidity codebase.
- Utilized advanced static and dynamic analysis tools to identify common vulnerability patterns.
- Conducted economic modeling to simulate flash loan attacks and other economic exploits.
- Identified a critical reentrancy vulnerability in the withdrawal function that would have allowed an attacker to drain the entire protocol. We provided a detailed remediation report and worked with their team to implement and verify the fix.
"Errna was the perfect partner to bridge the gap between traditional finance and blockchain. They understood our need for institutional-grade security and regulatory compliance and delivered a solution that satisfied our board and our investors."
Client Overview
RealtyToken Corp is a large, established real estate investment firm aiming to launch a platform for tokenizing commercial properties. Their target audience was institutional and accredited investors, for whom security and regulatory compliance were non-negotiable.
Key Challenges
- Navigating the complex legal landscape of securities and digital assets.
- Building a wallet system that was both user-friendly for non-crypto natives and ultra-secure.
- Integrating robust KYC/AML checks to prevent illicit funds and comply with regulations.
- Ensuring the custody solution met the high standards of institutional investors.
Our Solution
We designed and built a bespoke, compliance-first digital asset wallet and custody platform from the ground up.
- Architected a secure custody solution combining multi-sig and MPC technologies for institutional-grade protection.
- Integrated a leading KYC/AML provider's API to automate identity verification and background checks during investor onboarding.
- Developed a whitelisting smart contract to ensure only verified, eligible investors could hold and transfer the security tokens.
- Implemented role-based access control (RBAC) and comprehensive audit logs for all administrative actions, providing transparency and accountability.
Our Technology & Tools Arsenal
We leverage a curated stack of best-in-class technologies and security tools to build and audit your wallet infrastructure, ensuring robust protection at every layer.
What Our Clients Say
Trust is earned. Hear directly from the leaders who have entrusted us with their digital asset security.
"The depth of Errna's security audit was astounding. They uncovered subtle vulnerabilities that could have been catastrophic. Their team is professional, thorough, and an essential partner for any serious Web3 project."
"We needed a wallet solution that was both secure enough for institutions and simple enough for our retail users. Errna delivered perfectly, integrating MPC technology seamlessly into our platform. Their expertise is unmatched."
"Navigating compliance in the crypto space is a nightmare. Errna's team made it straightforward, integrating a robust KYC/AML framework that satisfied regulators and gave our banking partners confidence. Highly recommended."
"As a venture capital firm, we insist that our portfolio companies get a security audit from Errna before launch. Their stamp of approval is the gold standard and significantly de-risks our investments."
"We engaged Errna for an emergency incident response after a security scare. Their team was available 24/7 and their calm, methodical approach helped us contain the issue and strengthen our defenses. They are true professionals."
"The threat modeling workshop we did with Errna was an eye-opener. It forced us to think like an attacker and fundamentally changed how we approach security in our development lifecycle. Every dev team should do this."
Meet Our Security Architects
Your assets are protected by a team of industry veterans, certified ethical hackers, and leading minds in cryptography and cloud security.
Joseph A.
Expert Cybersecurity & Software Engineering
Vikas J.
Divisional Manager, Certified Expert Ethical Hacker, Enterprise Cloud & SecOps Solutions
Akeel Q.
Manager, Certified Cloud Solutions Expert, Certified AI & Machine Learning Specialist
Prachi D.
Manager, Certified Cloud & IOT Solutions Expert, Expert in Artificial Intelligence Solutions
Frequently Asked Questions
Clear answers to common questions about securing your digital asset wallets.
Multi-sig (Multi-Signature) is a blockchain-level feature requiring multiple distinct on-chain signatures to approve a transaction. MPC (Multi-Party Computation) is a cryptographic technique where multiple parties jointly compute a single signature without ever forming a whole private key. MPC is generally more flexible, faster, private, and blockchain-agnostic, but can be more complex to implement securely.
The cost of a security audit depends on the complexity and scope of your wallet system. Factors include the number of smart contracts, the complexity of the backend infrastructure, and the type of wallet (mobile, web, hardware). We provide a detailed quote after an initial consultation to understand your specific needs. Remember, the cost of an audit is a fraction of the potential loss from a single exploit.
For any platform handling significant user funds, integrating an HSM is highly recommended and considered an industry best practice. It provides a fundamental layer of hardware security that protects your most critical private keys from software vulnerabilities, malware, and remote attacks. While not strictly mandatory for all setups, it's a crucial step for achieving institutional-grade security.
The timeline varies based on the project's complexity. A smart contract audit might take 2-4 weeks. A full wallet architecture design and implementation with HSM integration could take 3-6 months. We work with you to establish a clear project plan with defined milestones during our initial engagement.
Yes. We offer emergency incident response and forensic services. Our team can help you contain the breach, analyze the attack vector, trace stolen funds, and develop a remediation plan to securely bring your systems back online and prevent future incidents. Time is critical in these situations, so please contact us immediately.
Ready to Fortify Your Digital Fortress?
Don't leave your assets to chance. A single vulnerability can be catastrophic. Partner with a proven leader in enterprise-grade security to build a wallet solution that inspires trust and confidence. Schedule a free, no-obligation consultation with our security architects today.