SaaS Cyber Security Challenges
SaaS organisations depend on web applications, APIs, cloud infrastructure and third-party integrations to deliver scalable, continuously available services.
This enables rapid product development and growth, but it also creates complex security risks. A weakness in authentication, tenant isolation, application logic or cloud configuration could expose customer data, enable unauthorised access or affect every organisation using the platform.
Effective SaaS cyber security therefore requires more than automated scanning. Independent SaaS penetration testing examines how your platform responds to realistic attack techniques and whether the controls protecting users, tenants and sensitive information work as intended.
Multi-Tenant Data Isolation
SaaS platforms commonly serve multiple customers from shared applications, databases and cloud infrastructure. Our testing assesses whether users can cross tenant boundaries or access information and functionality outside their authorised organisation.
Complex APIs and Integrations
SaaS platforms frequently rely on APIs to support front-end applications, mobile products, customer integrations and automated workflows. API penetration testing helps determine whether attackers or lower-privileged users can manipulate requests, bypass permissions or abuse integration functionality.
Enterprise Security Expectations
Prospective customers increasingly request evidence that SaaS platforms have been independently tested before sharing data or signing contracts. A clear penetration testing report helps demonstrate that the platform has undergone a professional security assessment and that the identified vulnerabilities have been understood and addressed.
Benefits of SaaS Penetration Testing
SaaS penetration testing provides evidence of how your platform responds to realistic attacks.
Rather than relying solely on automated findings, our consultants investigate whether vulnerabilities can be exploited, how weaknesses could be combined and what access an attacker could achieve. This helps your teams prioritise remediation and make informed security decisions.
Identify Exploitable Vulnerabilities
Find weaknesses across applications, APIs, mobile platforms, cloud services and supporting infrastructure before attackers do.
Protect Customer and Tenant Data
Assess whether a single user or customer could access, alter, or extract information belonging to another tenant.
Support Enterprise Sales and Procurement
Provide independent evidence that your SaaS platform has undergone professional security testing.
Prioritise Remediation
Our reports provide technical evidence, explanations of impact, and practical remediation guidance so engineering teams can focus on the issues that matter most.
SaaS Pen Testing Services
Web Application Penetration Testing
Assess authenticated SaaS dashboards, customer portals, administrative interfaces and public-facing functionality.
Network Penetration Testing
Assess the internal and external network infrastructure that supports your SaaS platform.
API Penetration Testing
Assess the APIs that connect your SaaS application, customer integrations, mobile products, and third-party services.
Mobile Application Penetration Testing
Assess iOS and Android applications connected to your SaaS platform.
Cloud Penetration Testing
Assess SaaS infrastructure hosted across AWS, Microsoft Azure or Google Cloud.
Social Engineering Testing
Assess how employees respond to controlled phishing and other authorised social-engineering scenarios.
Our SaaS Pen Testing Process
Contact a consulting team member by phone, email, or post. We will then discuss whether we can help you and arrange a scoping meeting to discuss your requirements.
In the scoping meeting, our team will discuss your requirements in further detail. Our team will ask questions regarding the following:
- Assets
- Asset Locations
- Test Perspective
- Objectives
- Scoping
- Date & Time
- Technologies
- Frameworks
Our expert consultants will discuss and finalise which digital assets you need testing in the scoping meeting. Based on the requirements, we will then assemble a project proposal and quote and agree on a schedule for conducting the security assessment.
Our proposal document will include the following information:
- Client Information
- Test Perspective
- Test Constraints
- Test Framework
- Scope Information
- Determined Scope
- Deliverables
- Quote & Authorisation (Signature)
The Penetration Testing starts. A member of our Penetration Testing team will liaise with a member of your company throughout the entire testing process. You will be the first to know if we have any questions or concerns. Our testing team will be on hand throughout the penetration test lifecycle to answer any questions or concerns.
Our tester will:
- Keep you updated
- Provide end of day summaries
- Liaise with the point of contact
- Test using a strict methodology
- Document evidence
- Maintain confidentiality
- Provide real-time alerts
- Deliver detailed reports
A Penetration Test is useless without a well-written report. Our reports are written in plain English, concise, and thoroughly documented. The Penetration Test Report is typically furnished within 5 days after the testing phase is complete. If you are interested in seeing an example report, please contact our team.
Each report details the following:
- Context & Objectives
- Mailing List
- Period and Confidentiality
- Perimeter & Scope
- Environment Overview
- Executive Summary
- Findings Summary & Table
- Technical Details
At Sencode, we offer free retesting for every Penetration Test we conduct. You fix the issues; then we will verify they can no longer be exploited by an attacker. Our team will arrange a mutually suitable time to conduct the retest, after the remediation efforts have taken place.
Our tester will follow these steps:
- Arrange Access
- Ask what issues have been resolved
- Retest the issues in the report
- Provide end of day summaries
- Update the document
- Deliver the document
- Offer a retest debriefing
- Debrief with your team
Deliver a Security Testing Certificate
Our clients receive a testing certificate that can be shared with partners and customers, showing that their company takes security seriously. The certificate and document are designed to be easily digested by third-party suppliers; the document removes the technical details and can be safely distributed.
The Security Testing Certificate is available on request after the retest has been completed. The security certificate shows:
- Date of the assessment
- Company name
- Client name
- Outstanding issues
- Resolved Issues
- Updated risk profile
- Environment Overview
- Executive Summary
What does choosing a CREST provider mean?
CREST accreditation is an independent, rigorous assessment of technical competence, process and data security. Choosing a CREST-accredited provider means your testing is delivered to a standard you can trust – and evidence you can stand behind.
Certified Penetration Testing Consultants
Our consultants are highly trained and individually certified.
Proven Pen Test Methodologies
Our pen testing follows recognised best practices: PTES, OWASP, and NIST.
Compliant reporting
Our reports provide executive context, technical evidence, risk-rated findings and practical remediation guidance.
ISO aligned
Our information security and quality policies align with ISO 27001 and ISO 9001.
Grey, Black and White Box Penetration Testing
At Sencode, we test from every perspective. Not sure which fits your needs? Speak to a member of our team; our experts are on hand to advise.
Client Testimonials
Don’t just trust our word for it; hear what our clients have to say about working with our team.
“The team at Sencode are flexible and easy to work with while also being extremely diligent and professional in what they do. As a result, we regard Sencode as a critical partner in ensuring our software is properly tested.”
Chief Technical Officer
Huler
“We held a briefing meeting with Callum to demo the system, answer relevant questions, and provide access for testing. Once the testing was completed, the report was efficient and comprehensive.”
Project Manager
Trinity College Dublin
“The team was super friendly, knowledgeable, and happy to chat with us. They did really great work, and I’m very happy that we got to work with them.”
IT Director
Diversity and Ability
“All conversations with Sencode have been very easy, and it’s clear that the team know their stuff. From the initial chat to the retesting process, we’ve been kept informed and supported throughout.”
Digital Lead
Verve Group
“Sencode have conducted our penetration testing for the last two years. Each time, they were professional, polite and kept us informed throughout the process. The reports were received in a timely manner and were concisely written. All this and at a competitive rate.”
Technical Engineer
Pip Studios
“Working with Sencode has been brilliant. You can tell they genuinely love what they do – it shows in how thoroughly they test everything and dig into the details. Even a non-tech person could understand what they found and what needed fixing.”
Cyber Security Specialist
Home Group
Frequently Asked Questions: SaaS Pen Testing
The duration depends on the platform’s size and complexity, the number of user roles, the API surface, the tenant model, and any supporting infrastructure included in scope. A focused SaaS application assessment may take several testing days, while a larger multi-tenant platform containing extensive APIs, mobile applications and cloud infrastructure will require more time. Following a short scoping call, Sencode provides a fixed scope, testing schedule and quotation
The cost depends on the number and complexity of the assets included in scope. Relevant factors include the number of applications, API endpoints, user roles, tenants, integrations, and cloud components to be assessed. Our blog breaks down the costs involved in penetration testing.
Yes. Where suitable test accounts are provided, Sencode can assess whether users can cross-tenant or organisational boundaries.
Contact us
Get a free, no obligation quote from one of our expert staff.