Wallet Security
Security engineering for wallets — key storage, signing flows, phishing defences, recovery and app hardening.
Identity
SSOMFAPasskeysAccess control
RBACLeast privilegeJust-in-timeSecrets
VaultRotationNo secrets in codeEncryption
TLS in transitEncrypted at restMonitoring
Audit logAlertsThreat detection
Audit events
login.mfa.success
user · passkey
role.granted
approved by 2nd admin
secret.rotated
db-credentials
anomaly.flagged
unusual geo → ticket
Division
Service area
Web3 Security Engineering
Engagement
Project · Team · Managed
Overview
Wallets protect users' most valuable secrets. Wallet security engineering addresses key generation and storage, signing flow integrity, transaction simulation and warnings, phishing and malicious dApp defences, recovery mechanism safety, app hardening and supply chain risks. We review and harden wallets or build security into new wallets from the start.
Common use cases
- Wallet security reviewAssessment of an existing wallet.
- Secure wallet designSecurity architecture for a new wallet.
- Recovery reviewSafety of recovery mechanisms.
- Institutional wallet hardeningControls for high-value wallets.
Quick answers
Wallet Security at a glance
The essentials in brief. Every project is scoped individually — ask us for specifics.
- What is wallet security?
- Security engineering for wallets — key storage, signing flows, phishing defences, recovery and app hardening.
- Who is it for?
- Typically Web3 startups, fintechs adding digital assets, and institutions exploring tokenization, stablecoins or on-chain settlement.
- What does Shivacha provide?
- Key storage review
- Signing integrity
- Phishing defences
- Recovery safety
- App hardening
- Dependency review
- Which technologies are used?
- Solidity, Foundry, OpenZeppelin, MPC Cryptography, OWASP, Prometheus — chosen to fit your stack and constraints.
- How does the process work?
- Scope → Threat modelling → Review & testing → Remediation → Operate.
- What affects the cost?
- Contract complexity and number of chains
- Custody and wallet model
- Independent audit scope
- Indexing, analytics and back-office tooling
- Compliance integrations (KYC, AML, Travel Rule)
- Upgradeability and governance requirements
- How long does it take?
- A focused contract system or dApp MVP typically takes 8–14 weeks plus independent audit time; institutional platforms usually take 4–9 months.
- How do I get started?
- Share a short brief in the form below, book a 30-minute call or message us on WhatsApp. A senior engineer replies within one business day; NDA on request.
Capabilities
What we deliver
Key storage review
Secure enclave and encryption checks.
Signing integrity
What-you-see-is-what-you-sign.
Phishing defences
Warnings and blocklists.
Recovery safety
Guardian and backup design review.
App hardening
Runtime protections.
Dependency review
Supply chain risk checks.
Architecture
Engineered right from day one
The layers we typically design for Web3 security engineering, adapted to your stack and partners.
- Independent audits still matterOur work prepares for, and complements, third-party audits.
- Beyond the contractMany losses come from keys, frontends and operations, not code.
- Economic securityOracle manipulation and incentive attacks modelled explicitly.
- Response readinessPausing, upgrades and communication planned before incidents.
Delivery
How an engagement runs
- 1
Scope
Assets at risk, components and adversaries.
- 2
Threat modelling
Attack trees across contracts, keys, infrastructure and economics.
- 3
Review & testing
Code review, fuzzing, invariant testing and infrastructure checks.
- 4
Remediation
Prioritised findings and fixes, re-tested.
- 5
Operate
Monitoring, alerting and incident runbooks.
Security
Security built into delivery
Controls we apply by default on this kind of work — not a separate phase at the end.
Specification first
Roles, invariants and threat model documented before code.
Adversarial testing
Fuzz, invariant and fork tests plus static analysis on every change.
Key management
Admin keys in multisig or MPC with timelocks on sensitive actions.
Independent audit
Code prepared for — and we recommend — an external audit before mainnet value.
Technology
Tools we use for this
Related services
Often combined with
Web3 Security Engineering
Holistic Web3 security — contracts, keys, infrastructure, frontends and operations — engineered and tested.
Learn moreWeb3 Threat Modeling
Structured threat modelling for Web3 systems — assets, adversaries, attack paths and prioritised mitigations.
Learn moreProtocol Security
Protocol-level security engineering — consensus, bridges, oracles, upgrades and economic security.
Learn moreDedicated team
Smart Contract Team
Audit-ready smart contract engineers for tokens, DeFi and tokenization.
Work & insights
Related thinking
Policy-controlled institutional digital asset operations
A reference design for institutions that need every digital asset transaction initiated, approved and signed under explicit policy.
Learn moreTokenized fund units with on-chain eligibility
How we structure a fund tokenization platform where only eligible investors can hold or receive units.
Learn moreMost breaches start with identity: where to focus security effort first
Before advanced tooling, get identity right: phishing-resistant MFA, least privilege, secrets out of code and logs you can actually search.
Learn moreFAQ
Frequently asked questions
What is the biggest wallet risk?
Users signing malicious transactions they don't understand — simulation and clear warnings are key defences.
Are browser extension wallets less secure?
They face different risks, such as malicious extensions and phishing sites, requiring specific controls.
Is this the same as a smart contract audit?
No. We provide security engineering, internal review and audit preparation. For production contracts holding meaningful value, independent audits by specialist firms remain essential.
Do you monitor deployed contracts?
Yes. We set up on-chain monitoring and alerting for anomalous transactions, privileged function calls and parameter changes.
Next step
Discuss Your Blockchain Project.
Tell us about your wallet security requirements — goals, timeline and constraints. We will reply with questions, an approach and next steps.
- Senior engineer reads every enquiry
- Reply within one business day
- NDA on request
Your details are used only to reply to this enquiry.