Security & Privacy Engineering

Smart Contract Audits: Scope, Findings and Follow-Through

How to inspect the reviewed version, assumptions, remediation and continuing security responsibilities.

Read the article

Why Audits Exist in the First Place

Smart contracts can control valuable assets and permissions. Deployed code, proxy arrangements and upgrade authority determine how changes are possible. Review each design’s failure modes and change controls.

Audits exist to reduce that risk by identifying known vulnerability classes, reviewing business logic against stated intent, stress-testing assumptions under adversarial conditions, and improving overall code quality and clarity.

Audits provide findings within an agreed scope. Builders and users retain their own responsibilities, and residual risk remains.

What a Smart Contract Audit Examines

A high-quality audit can provide several valuable assurances—within a clearly defined scope.

It Evaluates Code Against Known Vulnerability Classes

Auditors look for common and well-understood issues such as:

reentrancy vulnerabilities, arithmetic overflows and underflows, improper access control, unsafe external calls, and missing validation or authorization checks.

Finding and fixing these issues materially improves security.

These vulnerability checks form part of the agreed review scope.

It Reviews Logic Relative to the Specification

Auditors compare the implemented code against:

design documentation, inline comments, and intended business logic.

This helps identify discrepancies where the code does something other than what the developers intended.

Review the specification and the implemented behavior together, with additional expertise where the design requires it.

Audit scope should include relevant design assumptions; specialist economic or operational review may also be needed.

It Improves Readability and Maintainability

Good audits often recommend clearer naming, simpler control flow, and reduced complexity. These changes make future reviews easier and reduce the likelihood of developer error. Security improves when systems are understandable.

Audit Scope and Limitations

Read the report’s scope and exclusions before using its findings in an assurance decision.

Economic Risk Review

Economic analysis belongs in an explicit review scope, covering relevant incentives, governance, market behavior and liquidity assumptions. Confirm which of these subjects the engagement assessed.

Residual Vulnerability Risk

Auditors are human. Time is limited. Scope is constrained.

Audits reduce risk. They do not eliminate it.

An audited version can retain vulnerabilities and dependencies beyond the assessment’s coverage. Read the scope, assumptions and unresolved findings.

Operational Review Scope

An audit’s agreed scope determines whether deployment, keys, upgrades or operational practices were examined. Read that scope before applying the findings to a live system.

Confirm whether deployment, key handling, changes, monitoring and response were included in the engagement scope.

Assessing Audit Claims

The industry's overreliance on audit branding has led to a dangerous dynamic:

Track findings through remediation and relate the reviewed version to the deployed system.

Overstating coverage can mislead readers and should be corrected.

How Becoming Alpha Approaches Audits

The security strategy defines independent audit and remediation as pre-mainnet gates. The current public status records no completed third-party audit.

A commissioned review should define the code, assumptions, invariants and other subjects in scope. Track its findings alongside testing, monitoring and operational assurance.

Reading an Audit Report Like a Professional

Most users glance at the summary page and stop there. This is a mistake.

A meaningful audit review starts with understanding scope.

Step 1: Verify What Was Actually Audited

Look for which contracts were included, which versions were reviewed, and whether deployment configurations were in scope. If a contract interacts with unaudited components, risk remains.

Step 2: Understand the Severity Model

Audit findings are typically categorized as critical, high, medium, low, or informational. Different firms use different definitions. Understanding the differences between severity levels is crucial:

Critical findings indicate vulnerabilities that could lead to immediate loss of funds, permanent system compromise, or complete protocol failure. These should never be ignored and must be fixed before deployment.

High severity findings represent significant security risks that could be exploited under certain conditions, potentially leading to substantial losses or system manipulation. These require prompt attention and should be addressed before or immediately after launch.

Medium severity has the meaning assigned by the auditor’s methodology. Assess impact, likelihood, exploit conditions and mitigations, then record the remediation decision and any release implications.

Low severity and informational findings need to be interpreted using the report’s definitions. Record their impact, remediation decision and any dependencies on other findings.

Severity labels are firm-specific and can be misleading when read in isolation. A "low" issue may still matter if it compounds with other weaknesses (for example: missing validation plus weak access control), or if it undermines observability (missing events) and makes monitoring ineffective.

Read how the firm defines severity, then evaluate each finding by impact and exploitability. The real question is what could break, how much value is exposed, and how realistic the exploit path is.

Step 3: Check the Fix Status Carefully

Look beyond "resolved."

Ask whether the issue was fixed in code, whether the fix was re-audited, and whether the fix introduced new complexity. A fix that is not re-reviewed reintroduces uncertainty.

Diff between reports: draft → final → remediation shows how findings evolved through the audit process. Understanding this evolution is essential for evaluating audit quality and remediation effectiveness.

Draft reports contain initial findings from the first audit pass. These findings may include false positives, incomplete analysis, or issues that are later clarified. Draft reports show what auditors found initially, before discussion with developers and deeper analysis.

Final reports contain findings after discussion, clarification, and re-analysis. Some draft findings may be resolved through explanation, some may be reclassified based on deeper understanding, and some may be confirmed as genuine issues. Final reports show what auditors concluded after full analysis.

Remediation reports show how issues were addressed. They document fixes, re-audit results, and verification that issues were properly resolved. Remediation reports should show that fixes were implemented correctly, that fixes were re-reviewed, and that fixes didn't introduce new issues.

When reading audit reports, look for this progression: draft findings, final conclusions, and remediation verification. Reports that skip steps or don't document remediation are incomplete. The diff between reports shows how issues were understood, addressed, and verified—this transparency is essential for evaluating audit quality.

Step 4: Read the Disclaimers (Seriously)

Audit disclaimers define scope, assumptions and responsibility limits.

Read disclaimers for the agreed scope, assumptions and responsibility limits. Evaluate statements about security against that documented coverage.

Common Audit Red Flags: What to Watch For

When reviewing audit reports, certain patterns should trigger skepticism. While these red flags don't necessarily mean a project is malicious, they indicate that the audit may not provide the security assurance it appears to offer.

One common red flag is when audit reports contain only high-level summaries without technical details. Credible audits explain vulnerabilities clearly, describe attack scenarios, and provide specific code references. If an audit report is vague—claiming issues were found and fixed without explaining what they were—it may indicate that the findings were superficial or that the audit process was rushed.

Map the reviewed contracts and components to the implemented system. Identify uncovered interactions, dependencies and invariants requiring additional assessment.

For findings marked resolved, seek the changed code and verification evidence. Assess whether the remediation addresses the cause and whether associated changes require further review.

Read severity labels alongside impact, likelihood and exploit conditions. Request clarification where the classification appears inconsistent with the report’s methodology.

Establish the relationship between the audited version and the deployed implementation. Review subsequent changes and the evidence supporting their release.

Common Red Flags in Audit Marketing

Certain patterns in how audits are marketed should immediately trigger skepticism.

Audit Documentation

Credible projects publish full reports, dates, commit hashes, and follow-up audits. Vague claims without documentation are meaningless.

Audits With Extremely Narrow Scope

If only a single contract was audited in a complex system, the audit provides limited assurance.

Cross-contract interactions are where many bugs hide.

No Mention of Post-Audit Changes

Code evolves. Audits are snapshots in time.

If significant changes occurred after the audit, the report may be largely irrelevant.

Audits and Cross-Chain Dependencies

Cross-chain assurance should examine supply accounting, replay protection, configured ordering and recovery. Document the system-wide assumptions and interactions included in scope.

Testing and Independent Review

Testing makes expected behavior executable. Property and invariant tests explore defined inputs and assumptions. Record coverage, limitations and the reviewed version.

Post-Audit Reality: Monitoring, Incident Response, and Upgrades

Audit follow-through includes monitoring, incident preparation and review of changes to the assessed system.

Monitoring observes runtime behavior and can reveal anomalies. Independent audit and operational monitoring provide different forms of evidence.

Response readiness depends on defined procedures, trained responders and tested recovery. Record the scope and results of exercises.

An upgrade can change the scope or assumptions of an earlier review. Assess the changed code and permissions, determine required testing or independent review, and monitor the released version against defined expectations.

Maintain monitoring, response preparation and change review after the audit.

Monitoring and Incident Response

Audits examine code before deployment.

Monitoring examines behavior after deployment.

Institutions care deeply about this distinction.

The monitoring design includes pending-state exposure, message failures and configuration drift. Verify implemented signals and response processes for the deployment under review.

Incident Response Is the Ultimate Audit

An incident can prompt independent investigation by participants and researchers. Preserve relevant records and communicate verified findings, affected versions and unresolved questions.

At that moment, what matters is whether funds are accounted for, whether damage is contained, whether communication is clear, and whether recovery is disciplined. No PDF can compensate for poor incident response.

Questions for Institutional Review

Institutional reviewers rarely ask:

"Was this audited?"

They ask:

“How many audits?”, “What changed after the audit?”, “What invariants are enforced on-chain?”, “How do you detect anomalies?”, and “How do you recover?”

Audits provide evidence for a wider assessment.

Designing Systems That Remain Secure After the Audit

Ask the ongoing operational question:

"Did you pass an audit?"

Also examine:

"What protects users after the audit is finished?"

Becoming Alpha’s assurance strategy identifies these design and review requirements:

explicit accounting invariants, defense-in-depth controls, zero-trust assumptions, monitoring and alerting, and incident response readiness.

An audit, when completed, will provide findings for its agreed scope within the wider assurance program.

Post-Audit Responsibility: What Platforms Must Still Do

Audit completion is a milestone within continuing security responsibilities.

Change review: Assess the effect of code changes on the audit’s scope and assumptions, and determine the further testing or independent review required.

Monitoring and incident response address observed behavior during operation. Audit findings, configuration reviews and runtime signals contribute different evidence to ongoing assurance.

Operational security needs its own review scope: admin keys, change procedures, access control and response practice can be assessed through appropriate assurance work.

Continuous improvement: Review recommendations for code organization, testing and architecture, and record their disposition and any subsequent verification.

Transparency about audit limitations: Platforms should be honest about what audits cover and what they don't. Overstating audit coverage erodes trust when incidents occur that audits couldn't prevent. Post-audit responsibility includes managing expectations and being transparent about security posture.

Using Audit Evidence

Smart contract audits are valuable. Necessary. Often indispensable.

Their conclusions apply within the documented scope and limitations.

A report records a scoped review. Examine its findings, assumptions, remediation and relationship to current code.

The security strategy places independent audit within continuing development and operational assurance.

This is how we Become Alpha.

All insights