dApp Security Assessment

End-to-end security assessment of decentralized applications including Web3 frontends, wallet flows, RPC/API backends, and smart contract integration

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About This Service

Our dApp Security Assessment reviews the full user-facing Web3 application stack, including frontend flows, wallet interactions, RPC or API backends, transaction signing logic, and integration with on-chain contracts. This service is ideal when the main risk is at the boundary between web application behavior and blockchain operations.

What's Included

Frontend review of wallet connect, transaction prompts, and chain selection flows

Assessment of RPC, API, and backend trust assumptions

Contract integration and transaction construction validation

User approval, signing, and phishing-resistance flow review

Session, auth, and web security issues relevant to Web3 applications

Cross-layer findings that connect frontend, backend, and contract behavior

How It Works

Application Flow Mapping

We trace the journey from browser to wallet to backend to smart contract and identify the key trust boundaries.

Web3 Interaction Review

We review wallet prompts, chain switching, transaction building, signature requests, and contract calls for unsafe patterns.

Backend and Integration Testing

We assess RPC/API layers, authorization logic, data trust, and failure handling around on-chain actions.

Reporting and Retest

You receive findings that connect user risk, engineering impact, and practical fixes across the full dApp stack.

Deliverables

Executive summary with end-user risk overview
Detailed dApp assessment report
Wallet flow and approval risk notes
RPC/API and integration observations
Remediation roadmap across frontend, backend, and contract layers
Retest support for corrected issues

Why HafezSecure

Full-Stack View

We connect classic web security review with wallet, chain, and contract interaction risks.

User-Risk Focus

Unsafe signing flows, approval prompts, and misleading UI patterns are treated as security issues, not only UX defects.

Integration Accuracy

We validate that frontend, backend, and contract assumptions stay aligned under real transaction flows.

Practical Remediation

Recommendations are split by layer so product, frontend, backend, and contract teams can act on them quickly.

Frequently Asked Questions

How is a dApp assessment different from a standard web pentest?

A dApp assessment includes web security fundamentals, but it also covers wallet interactions, signing flows, chain selection, on-chain trust assumptions, and RPC/API behavior that a standard web pentest may not fully address.

Do you review wallet prompts and approval flows?

Yes. User approval prompts, transaction summaries, chain switching, and risky signing flows are important parts of Web3 user security.

Can this be combined with smart contract review?

Yes. Many engagements combine dApp review with smart contract assessment so UI, backend, and on-chain logic can be evaluated together.