What is security testing services?
Security testing services find weaknesses in applications before attackers do. NNT Software performs OWASP-based testing of web applications, APIs and mobile apps, covering authentication, access control, injection and data exposure, and delivers a risk-ranked remediation list with retesting after fixes.
A single missed access-control rule or exposed API can leak customer data. Security testing looks at your application the way an attacker would, and gives developers a concrete list of what to close.
Our testing follows the OWASP Top 10 and OWASP API Security risks and the scope you agree with us. We report observations and remediation guidance; formal certification and legal compliance remain with your own auditors.
Key benefits of security testing services
Find weaknesses first
Issues are discovered and fixed before attackers exploit them.
Protect customer data
Access-control and exposure flaws are closed before they cause a breach.
Audit-ready evidence
Test reports support customer questionnaires and compliance reviews.
Developer-ready fixes
Findings come with reproduction steps and remediation guidance.
Lower incident cost
Fixing in testing is far cheaper than responding to an incident.
Our security testing services capabilities
Web application testing
Injection, cross-site scripting, broken authentication and session handling checks.
API security testing
Authorisation, object-level access, rate limiting and data-exposure testing on endpoints.
Mobile app security
Insecure storage, weak transport security, login and access-control checks on Android and iOS builds.
Vulnerability assessment
Automated scanning plus manual verification, with false positives removed.
Access-control review
Role boundaries tested so users cannot see or change other users’ data.
Remediation support
Risk-ranked findings, fix guidance for developers and retesting to confirm closure.
Outcomes clients typically see: fewer exploitable weaknesses, audit-ready evidence of testing and developer-ready fix guidance.
Common use cases
Pre-launch security review
OWASP-based testing of a new web or mobile product.
API security assessment
Authorisation and data-exposure testing of backend endpoints.
Customer security questionnaires
Evidence for enterprise buyers asking about testing.
Post-incident or post-change checks
Retesting after major architectural or vendor changes.
Technology stack
We choose technology for long-term maintainability, performance and the skills available to your team. Typical security testing services stack:
- OWASP ZAP
- Burp Suite
- Nmap
- Postman
- MobSF
- SonarQube
How much does security testing services cost?
The final cost of security testing services depends on five main factors: the number of user roles and screens, the integrations required (payments, identity, ERP, CRM, messaging), compliance and security requirements, the seniority mix of the team, and the engagement model.
We always start with a short discovery phase so the estimate you receive is fixed and written, not a vague range. Ongoing maintenance and hosting typically add 15–20% of the build cost per year.
| Scope | Typical timeline |
|---|---|
| Web application security test | 2–3 weeks |
| API security assessment | 2–3 weeks |
| Mobile app security review | 2–3 weeks |
| Retest after remediation | 3–7 days |
How we deliver security testing services projects
Every security testing services engagement follows the same disciplined, transparent process. You always know what is being built, what it costs and what comes next.
1. Discovery and scoping (1–2 weeks)
Workshops with your stakeholders to understand goals, users, workflows and constraints. We document requirements as user stories, map integrations and agree success metrics, then share a written scope, milestone plan and fixed estimate for security testing services.
2. UX and architecture (1–3 weeks)
Designers produce user flows and a clickable prototype while architects choose the stack, hosting, data model and security controls. Nothing is built until you sign off the prototype and architecture.
3. Agile development (two-week sprints)
Developers build in short sprints with a demo at the end of each one. You see working software early, give feedback continuously and can reprioritise the backlog at any time.
4. Quality assurance
Dedicated QA engineers write test cases, run manual and automated regression tests, check performance and review security basics before every release. Defects are tracked openly.
5. Launch
We deploy with zero-downtime pipelines, migrate data if needed, monitor closely during the first days and train your team or users.
6. Support and growth
After launch, SLA-backed support covers bug fixes, monitoring, security patches and continuous improvement, so the product keeps improving as your business grows.
Engagement models and pricing options
You can engage NNT Software for security testing services in whichever way fits your budget, risk appetite and internal team.
| Model | Best for | How billing works |
|---|---|---|
| Fixed price | Clearly defined scope and deadline | Agreed price split into milestone payments |
| Dedicated team | Long-term products and evolving roadmaps | Monthly fee per engineer, scale up or down |
| Time & materials | Exploratory or fast-changing work | Hourly or daily rates against actual effort |
| Hybrid | Fixed MVP followed by ongoing growth | Fixed first phase, then monthly team |
Whichever model you choose, you own the source code and intellectual property, work directly with the engineers, and receive weekly progress reports and demos.
Security, quality and compliance standards
Security and quality are built into every security testing services project from the first sprint, not added before launch.
- Secure coding aligned with the OWASP Top 10 and peer code reviews on every change
- Encryption in transit (TLS) and at rest, secrets stored in managed vaults
- Role-based access control, multi-factor authentication and audit logs
- Automated tests in CI pipelines, plus manual exploratory and regression testing
- Data-protection by design for GDPR, CCPA, PDPL, DPDP and similar laws
- Infrastructure as code, monitoring, alerting and tested backups
- NDA before discovery and full IP assignment in the contract
Common security testing services mistakes to avoid
- Relying only on automated scanners with no manual verification.
- Testing production without agreed safe rules of engagement.
- Ignoring business-logic and authorisation flaws.
- Treating the test as a one-off instead of repeating after major changes.
- Fixing findings without retesting to confirm closure.
Security Testing Services trends for 2026
- OWASP API Security risks becoming a standard test scope.
- Security checks shifting left into CI pipelines.
- Software supply-chain and dependency scanning added to assessments.
- AI features introducing new prompt-injection test cases.
How to choose a security testing services partner
Use this checklist when comparing vendors:
- Follows OWASP guidance
- Combines automated and manual testing
- Agrees scope and rules of engagement first
- Ranks findings by risk
- Provides remediation guidance
- Retests fixes
Why companies outsource to NNT Software in India
India is the world's largest software-services hub, and NNT Software combines that talent depth with a product mindset. For security testing services, clients typically save 40–60% compared with agencies in the United States, United Kingdom, the Gulf or Australia, without compromising on quality or communication.
Our engineers work in English, overlap daily with your business hours and follow documented processes. You get a named project manager, direct access to developers, and the stability of a company that has delivered more than 2,000 projects since 2010 and runs eight of its own SaaS products.
Security Testing Services for clients worldwide
We deliver Security Testing Services for businesses in 95 countries across North America, South America, Europe, Gulf & Middle East, Asia Pacific and Africa. Overlapping working hours, local payment and compliance knowledge, and remote-first collaboration make distance irrelevant.
- North America: United States, Canada, Mexico, Panama, Costa Rica, Dominican Republic, Guatemala, Puerto Rico, Jamaica, Trinidad and Tobago, The Bahamas
- South America: Brazil, Argentina, Colombia, Chile, Peru, Uruguay, Ecuador, Paraguay
- Europe: United Kingdom, Ireland, Germany, France, Netherlands, Belgium, Luxembourg, Spain, Portugal, Italy, Switzerland, Austria, Sweden, Norway, Denmark, Finland, Poland, Czech Republic, Romania, Greece, Malta, Cyprus, Estonia, Lithuania, Hungary, Croatia, Bulgaria, Serbia, Slovakia, Slovenia, Latvia, Iceland, Georgia, Armenia
- Gulf & Middle East: United Arab Emirates, Saudi Arabia, Qatar, Kuwait, Bahrain, Oman, Türkiye, Jordan
- Asia Pacific: Australia, New Zealand, India, Singapore, Malaysia, Indonesia, Thailand, Vietnam, Philippines, South Korea, Sri Lanka, Bangladesh, Kazakhstan, Uzbekistan, Azerbaijan, Nepal, Cambodia, Fiji
- Africa: South Africa, Nigeria, Kenya, Egypt, Morocco, Ghana, Rwanda, Mauritius, Tanzania, Uganda, Ethiopia, Côte d'Ivoire, Senegal, Tunisia, Botswana, Zambia
Select a country from the market list on this page for regulation, payments and delivery details specific to that market.
Next steps
Ready to discuss security testing services? Here is how to get started with NNT Software:
- Share your goals, users, must-have features and timeline through the contact form, email or WhatsApp.
- Join a free 30-minute discovery call with a solution architect — we sign an NDA first if you prefer.
- Receive a written proposal within 48 hours: scope, milestones, team, timeline and fixed estimate.
- Kick off with a discovery workshop and see working software in your first sprint demo.