> Application Security Audit_
Most security incidents do not start with a clever exploit. They start with a missing check: an endpoint that trusts the user ID in the request, a storage bucket left public, or a database policy that allows more than anyone intended.
An application security audit from Krasty Soft finds those gaps in your code before someone else does. Senior engineers review your source code, test how authentication and permissions behave, and give you a ranked list of fixes tied to specific files and lines.
> When Does Your Business Need an Application Security Audit?_
An audit is most valuable before a change in risk, not after an incident. Consider one when:
- You are preparing to launch and the app will hold customer data, payments or health records.
- The product was built quickly, by a contractor or with AI coding tools, and its security was never reviewed.
- An enterprise customer sends a security questionnaire or asks for proof of controls.
- You are preparing for SOC 2, HIPAA, GDPR or another compliance review.
- You are raising funding and expect technical due diligence.
- Something already went wrong, and you need to know whether it can happen again.
> What Our Application Security Audit Covers_
Each app security audit is scoped to your product, but four areas of review appear in almost every engagement. Together they show how an attacker could reach your data and what stops them today.
Application Security Code Review
The core of the work is an application code review focused on risk. We read the code paths that handle user input, money and personal data, and look for injection, unsafe deserialization, insecure file handling and logic flaws.
A code review for security differs from an ordinary peer review. The question is not whether the code is clean, but what happens when a user sends something the developer did not expect.
Authentication and Access Control Assessment
Broken access control is the most common serious finding in modern apps. We check how users sign in, how sessions and tokens are issued and expire, and whether every request is checked against the right owner and role.
We test both authentication and authorization. Can one customer read another customer's records? Can a regular user reach admin functions? Can password reset, invite or email change flows be abused to take over an account?
Many of these flaws are invisible in a demo, because the interface simply never shows the button. The server still accepts the request, and that is exactly what we test.
Vulnerability Detection and Risk Analysis
We combine manual review with automated scanning of source code and dependencies. Every vulnerability is confirmed by hand and rated by impact and likelihood, so you do not waste time on false positives.
The assessment also covers secrets in the repository, encryption of data in transit and at rest, logging of sensitive fields and error messages that reveal too much.
API and Third-Party Integration Security
Modern apps depend on payment providers, email services, analytics and AI APIs. We review how keys are stored, how webhooks are verified and what data each integration receives.
For apps built on Supabase or Firebase, a Supabase security audit checks row-level security policies, storage rules and which operations the public client key allows. These backends are secure by design only when their policies are written correctly.
> Types of Application Security Audits_
The checks above apply to any product, but the attack surface depends on where the app runs. We offer two focused audits, and you can order either one or both.
Web Application Security Audit
A web application security audit covers browser-based products: the frontend, the server and the APIs between them. It includes testing for common web threats such as cross-site scripting, request forgery and broken session handling.
Mobile Application Security Audit
A mobile application security audit covers iOS and Android apps and the backend they talk to. It focuses on local data storage, secrets in the app bundle, network traffic and protection against tampering.
> Our Application Security Audit Process_
Our process keeps the audit predictable for your team and the results easy to act on.
- Scope
We agree on the components, user roles and risks that matter most, and confirm the price and timeline.
- Access
You grant read-only access to the repository and, if needed, a test environment with sample accounts.
- Review and testing
We analyze the code, test authentication and permissions with real requests, and confirm each finding.
- Analysis
Every issue is rated by severity and described as a business risk, with the exact location and a fix.
- Report and debrief
We walk your team through the findings and can re-check the fixes once they are merged.
> Benefits of Professional Application Security Auditing_
Professional application security audit services give you more than a list of bugs. The main benefits are:
- Early detection
Vulnerabilities are found while they are cheap to fix and before anyone exploits them.
- Lower risk of data leaks
Gaps in access control and encryption are closed before customer data is exposed.
- More reliable software
Security fixes often remove hidden logic errors and crashes too.
- Easier sales and compliance
You can answer security questionnaires with evidence instead of promises.
- Protected reputation
Customers trust a product that has been checked by an independent team.
> Industries & Use Cases_
We focus on products where a security failure has real cost. In SaaS, we test tenant isolation and admin tools. In healthcare, we review access to patient records and audit trails. In fintech and ecommerce, we check payment flows, refunds and account takeover risks.
AI-built products are a growing share of our work. In one production readiness audit of a Supabase-based SaaS, 82 of 98 findings were high or critical, including policies that looked correct but allowed far more than intended.
> FAQ About Application Security Audit_
Below are short answers to the questions we hear most often before an application audit.
How Often Should You Audit Applications?
We recommend an audit before launch, after major changes to authentication, payments or data handling, and at least once a year for products that hold sensitive data. Regulated products may need more frequent reviews.
Can an Application Security Audit Identify All Vulnerabilities?
No audit can promise that. A careful manual review finds the issues that matter most, especially in access control and business logic, which automated scanners usually miss. Regular audits and secure development practices close the remaining gap.
What Happens After Security Vulnerabilities Are Found?
You receive a report with every issue ranked by severity, plus a recommended fix. Critical findings are shared with you immediately, before the final report. After your team applies the fixes, we can verify them.
Can You Perform a Supabase Security Audit?
Yes. We review row-level security policies, storage bucket rules, database functions, edge functions and how the anon and service keys are used. These are the most common sources of data exposure in Supabase projects.