Web application testing for a SaaS platforms
We have extensive experience in testing Software-as-a-Service (SaaS) applications across various industries. As a SaaS provider, you want to be sure that each tenant can only access their own data. You may offer different subscription packages and want to ensure that each customer can only access the functionalities they have actually paid for. Additionally, with numerous roles and permissions, access control can be a significant challenge, and you may wonder if it actually works.
Small misconfigurations can lead to serious issues, such as data leaks between tenants or unauthorized access to features. That’s why thorough testing of role-based access control, subscription enforcement, and tenant isolation is essential. We focus on these areas to help you maintain both security and trust across your platform.
Account and Access Management:
- user authentication (including SSO, MFA, password resets, and session management)
- account registration flows (invitation models, onboarding via enterprise identity providers, provisioning/deprovisioning)
- role-based access control (ensuring users only see and manage what they are entitled to)
Data Security and Privacy:
- tenant isolation and data segregation (preventing cross-tenant data leaks)
- secure storage and transmission of sensitive information
- permissions, data export/import functions, and audit trails
Application Logic and Integrations:
- API security (token validation, scope enforcement, OAuth2)
- Integrations with core SaaS business processes (billing, resource limits, custom configurations)
- webhooks and third-party service interactions
- over the last 23 years, we’ve worked with almost every industry in more than 20 countries worldwide.
Collaboration
We are not the type of company that goes silent during the engagement, just sending two emails (one when we start and a second one with the report).
It’s important to be on the same channel as the application team, such as Slack or Teams. We ask questions to understand and show what does not work as expected. We explain what we do and teach about what we consider important.
We help design and securely implement remediations, and we recommend the next steps during the test. We are also keen on learning, understanding why something is done in a certain way and not another, and what the pros and cons of a given code piece or module are. It makes us better at what we do, seeing the applications team’s perspective.
Expertise
We rely heavily on industry standards (OWASP projects, RFCs, Hacktricks), as well as our over 20 years of experience and a culture of knowledge sharing. This experience is built on a strong foundation:
- thousands of penetration tests delivered,
- security research presented at major security conferences around the world.
Our in-house checklists cover all popular technologies and frameworks, ensuring a reproducible set of test cases.
Team
We are a diverse bunch of people with various backgrounds. We are ex software developers, former administrators, CTF players, ex software testers, and former SOC operators.
Driven by a passion for quality, our team puts a lot of effort into staying up to date with the current landscape of application security, technologies, frameworks, trends, and threats. We share our knowledge both internally and at various conferences, our blog, and LinkedIn.
Connect with our Web App Security Expert!
Just share some details about your application and infrastructure, and we will assemble a team with the right mix of skills and experience to seamlessly integrate with your own staff. Our team becomes an extension of yours, collaborating closely and adapting to your unique needs and workflows.
fIf any unexpected challenges arise, we can immediately bring in specialized experts with deep knowledge in areas like cloud security, system architecture, or mobile apps, ensuring you always have the right expertise at hand.
Areas we’ve also supported include:
- Finance
- Insurance
- Healthcare & MedTech
- Cloud platforms
- AI-driven solutions
- Government & public sector
- Startups & scaleups
- Aerospace & space industry
- Manufacturing & heavy industry
- Telecommunications
- Retail & e-commerce
- Logistics & transportation
- Energy & utilities
Whether it’s a complex grey-hair challenge, a never-done-before idea, or a mission-critical system – we’ve got you covered. Our team combines researchers, ethical hackers, and international speakers trusted on world stages. Whatever you bring us, we’ll make it secure.
DORA compliance
Web application testing can contribute to the compliance with DORA principles. It aligns with DORA’s focus on securing software components.
Get a quote for your project
Book a call or fill out our contact form to get a quote for Web app security testing. Every organization is different – we’ll get in touch with you to determine the specifics of your needs and the broader context of security testing.
