--- title: "Web & Mobile Application Security Audit | Folia-Design" description: "Comprehensive application security audit: vulnerability scanning, penetration testing, code analysis. Preventing data leaks and breaches. 150+ audits completed." canonical_url: "https://folia-design.ru/en/services/security-audit" locale: en meta: "og:description": "Comprehensive web and mobile application vulnerability analysis. Penetration testing, code review, OWASP Top 10 verification." "og:image": "https://folia-design.ru/img/logo.png" "og:title": "Application Security Audit" "twitter:description": "Finding vulnerabilities in web and mobile applications. Preventing data leaks." "twitter:image": "https://folia-design.ru/img/logo.png" "twitter:title": "Application Security Audit" --- > Index of every page on this site: [llms.txt](https://folia-design.ru/llms.txt) We continue to work with international clients and accept payments. Feel free to contact us! Information Security # Web & Mobile Application Security Audit We perform comprehensive vulnerability analysis of your applications. We find weak points before attackers discover them. Pricefrom $900 Order an Audit Learn the Cost 150+Audits Completed 2000+Vulnerabilities Found 0Hacks After Audit ![Application security audit](https://folia-design.ru/_ipx/q_80&s_600x450/img/security-audit/hero-security.png) ## Threats We Prevent Real cases from our practice - issues we discovered for our clients ### Personal Data Leakage Unprotected APIs allowed access to user data without authorization. We prevented the leak of 50,000 records. ### Payment Widget Vulnerability Discovered the ability to manipulate payment amounts through widget exploitation. Fixed before the first incident. ### Security Key Exposure API keys and secrets were accessible in public code. Found and helped safely rotate all keys. ### Unauthorized File Download URL enumeration allowed downloading any user files. Implemented token-based access protection. ### SQL Injections Search forms allowed arbitrary SQL query execution. Could delete the entire database. ## What We Check Comprehensive analysis of all your application components Web Applications ### Complete Web Security Audit - OWASP Top 10 vulnerability testing - Authentication and authorization analysis - XSS, CSRF, and injection protection verification - Server configuration and SSL/TLS audit - Business logic vulnerability analysis Discuss a Project ![Web application audit](https://folia-design.ru/_ipx/q_80&s_550x380/img/security-audit/web-audit.png) Mobile Applications ### iOS and Android Security - Reverse engineering and code analysis - On-device data storage verification - Network traffic and API analysis - Cryptography testing - Anti-debugging and anti-tampering verification Discuss a Project ![Mobile application audit](https://folia-design.ru/_ipx/q_80&s_550x380/img/security-audit/mobile-audit.png) ## Types of Vulnerabilities We Check ### Injections SQL, NoSQL, OS, LDAP injections through unvalidated input data ### Broken Authentication Weak passwords, session vulnerabilities, multi-factor authentication flaws ### Sensitive Data Exposure Unencrypted data, weak cryptography, leaks through logs ### XXE & Deserialization Attacks through XML parsers and insecure object deserialization ### Broken Access Control Access restriction bypass, IDOR, privilege escalation ### Security Misconfiguration Insecure server, framework, and cloud service configurations ### XSS Reflected, Stored, and DOM-based Cross-Site Scripting attacks ### Components with Vulnerabilities Outdated libraries and frameworks with known vulnerabilities ### Insufficient Logging Lack of security logging and monitoring ## Our Other Projects Real-world cases of business process automation for our clients ![Fintech Startup PayFlow](https://folia-design.ru/_ipx/f_webp&q_80&s_400x250/img/security-audit/project-fintech.png) Pentest + Code Review ### Fintech Startup PayFlow Comprehensive audit of a payment service. Found 12 critical vulnerabilities, all fixed before launch. 47Vulnerabilities Found 100%Fixed Before Launch OWASPBurp SuitePython ![Services Marketplace](https://folia-design.ru/_ipx/f_webp&q_80&s_400x250/img/security-audit/project-marketplace.png) Web Application Audit ### Services Marketplace Security audit of a platform with 500,000 users. API, authentication, and payment data protection verification. 3Critical Bugs 10Medium Bugs API SecuritySQLiXSS ![Medical Portal](https://folia-design.ru/_ipx/f_webp&q_80&s_400x250/img/security-audit/project-medical.png) Audit + Consulting ### Medical Portal Security assessment of a system with patient personal data. Recommendations for 152-FZ compliance. 152-FZCompliance 0Data Leaks GOST RPersonal DataEncryption ## Why Clients Trust Us 150+ Audits Completed 8 years InfoSec Experience 24h Urgent Audit 100% Confidentiality ## How We Work 01 ### Information Gathering We study the application architecture, technology stack, and business logic 02 ### Automated Scanning We run professional vulnerability scanners and code analyzers 03 ### Manual Testing We perform manual penetration testing: finding vulnerabilities that scanners miss 04 ### Report & Recommendations We prepare a detailed report with priorities and remediation recommendations ## What You Receive Detailed report and practical recommendations ### Audit Report Document describing all found vulnerabilities, severity levels, and exploitation evidence ### Remediation Plan Prioritized task list for the development team with code examples ### Executive Summary Brief report for management with overall security assessment and risks ### Retest Re-verification of fixed vulnerabilities to confirm remediation ## Who Needs an Audit We work with companies that prioritize data security Fintech & Banks E-commerce Healthcare GameDev SaaS Services Enterprise ## Pricing plans Pick the option that fits you. Prices are indicative - you get an exact quote after a short call. ### Express Quick website check from $900 - Vulnerability scanning - OWASP Top 10 checks - Prioritized report - Remediation recommendations Popular ### Standard In-depth audit from $1,800 - Everything in Express - Manual code and logic review - Server infrastructure audit - Permissions and access review - Remediation assistance ### Comprehensive Audit + protection from $3,700 - Everything in Standard - Pentest under an agreed scenario - Protection and monitoring setup - Security policies - Re-check after fixes ### Plans don't fit? Name your budget. Every project is unique, and we understand that well. Over 19 years we've learned to shape the scope flexibly around each client's goals and means: we'll set priorities, suggest a phased launch and propose a solution that fits your price - without compromising quality. ## FAQ
How much does a security audit cost? An express audit - from $900, an in-depth audit - from $1,800, a package with a pentest - from $3,700.
What do we get in the end? A report with prioritized vulnerabilities, exploitation scenarios and a remediation plan.
Will the audit break our website? No: we follow an agreed scenario, and all risky checks run on a copy only.
How long does it take? Express - up to a week, an in-depth audit - 2-3 weeks.
Will you help fix the findings? Yes: we fix them ourselves or hand detailed instructions to your team, then re-check.
## Client Testimonials What our audit clients say The team found 12 critical vulnerabilities that we fixed with their help. DL Dmitry LebedevCTOFintech Startup PayFlow After a competitor got hacked, we decided to check ourselves. Expected bad news, but the report showed we're secure. Now we audit annually. AS Alexey SavinCTOMarketplace 'Torg-Online' Mandatory audit for 152-FZ compliance. Clear report, precise recommendations, help with remediation. EI Ekaterina IvanovaChief PhysicianClinic 'Medika' ## Other services We cover business needs end to end - from development to promotion [Turnkey development

Website development

Turnkey web development→](https://folia-design.ru/en/services/website-development) [Turnkey development

Corporate websites

Corporate websites→](https://folia-design.ru/en/services/corporate-website) [Turnkey development

Online stores

E-commerce development→](https://folia-design.ru/en/services/online-store) [Turnkey development

Custom CRM & ERP

Enterprise System Development→](https://folia-design.ru/en/services/crm-erp) [Turnkey development

Desktop applications

Windows · macOS · Linux→](https://folia-design.ru/en/services/desktop-apps) [Turnkey development

Landing pages

Sales Page Development→](https://folia-design.ru/en/services/landing-pages) XSSCVEPentestDevSecOpsOWASPWAFSSL/TLS2FAFirewallSQLiSIEMCSRFVPNNDA ## Ready to check your application's security? Submit a request and get a free consultation. We'll estimate the scope and prepare a commercial proposal. Free Consultation NDA from Day One Report in 5-10 Days Order an Audit ```json {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"How much does a security audit cost?","acceptedAnswer":{"@type":"Answer","text":"An express audit - from $900, an in-depth audit - from $1,800, a package with a pentest - from $3,700."}},{"@type":"Question","name":"What do we get in the end?","acceptedAnswer":{"@type":"Answer","text":"A report with prioritized vulnerabilities, exploitation scenarios and a remediation plan."}},{"@type":"Question","name":"Will the audit break our website?","acceptedAnswer":{"@type":"Answer","text":"No: we follow an agreed scenario, and all risky checks run on a copy only."}},{"@type":"Question","name":"How long does it take?","acceptedAnswer":{"@type":"Answer","text":"Express - up to a week, an in-depth audit - 2-3 weeks."}},{"@type":"Question","name":"Will you help fix the findings?","acceptedAnswer":{"@type":"Answer","text":"Yes: we fix them ourselves or hand detailed instructions to your team, then re-check."}}]} ``` ```json {"@context":"https://schema.org","@graph":[{"@id":"https://folia-design.ru/en#website","@type":"WebSite","description":"Folia-Design — веб-студия в Санкт-Петербурге. Разрабатываем корпоративные сайты, CRM/ERP системы, мобильные приложения и лендинги. 19 лет опыта, 246+ успешных проектов.","inLanguage":"en-US","name":"Folia-Design","url":"https://folia-design.ru/en","publisher":{"@id":"https://folia-design.ru/#identity"},"translationOfWork":{"@id":"https://folia-design.ru/#website"}},{"@id":"https://folia-design.ru/en/services/security-audit#webpage","@type":"WebPage","description":"Comprehensive web and mobile application security audit","name":"Application Security Audit","url":"https://folia-design.ru/en/services/security-audit","breadcrumb":{"@id":"https://folia-design.ru/en/services/security-audit#breadcrumb"},"isPartOf":{"@id":"https://folia-design.ru/en#website"},"mainEntity":{"@type":"Service","name":"Application Security Audit","provider":{"@type":"Organization","name":"Folia-Design"}},"potentialAction":[{"@type":"ReadAction","target":["https://folia-design.ru/en/services/security-audit"]}],"primaryImageOfPage":{"@id":"https://folia-design.ru/#logo"}},{"@id":"https://folia-design.ru/en/services/security-audit#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","name":"Home","item":"https://folia-design.ru","position":1},{"@type":"ListItem","name":"Application Security Audit","position":2}]},{"@id":"https://folia-design.ru/#identity","@type":"Organization","name":"Folia-Design","url":"https://folia-design.ru","logo":{"@id":"https://folia-design.ru/#logo"}},{"@id":"https://folia-design.ru/#logo","@type":"ImageObject","caption":"Folia-Design","contentUrl":"https://folia-design.ru/img/logo.png","inLanguage":"en-US","url":"https://folia-design.ru/img/logo.png"}]} ``` ## Sitemap See the full [sitemap](https://folia-design.ru/sitemap.md) for all pages.