VAPT Penetration Testing Malaysia: How We Scope & Size Your Security Assessment
Before any penetration testing engagement begins, Simply Data conducts a structured scoping exercise with the client. This step is what separates a meaningful security assessment from a checkbox exercise. In Malaysia’s regulatory environment, where Bank Negara Malaysia (BNM) RMiT, PDPA, and the Cyber Security Act 2024 impose specific obligations on organisations, getting the scope right is not optional.
This guide explains the full range of VAPT and security assessment services we offer as a NACSA-licensed provider, how each service is sized, what information is needed to produce an accurate scope, and what the different assessment modes mean for your project timeline and outcomes.
What Penetration Testing Services Are Covered Under VAPT?
VAPT — Vulnerability Assessment and Penetration Testing — is an umbrella term that covers more than a dozen distinct penetration testing service types. Each requires a different methodology, set of skills, and scoping approach. Malaysian organisations in financial, government, healthcare, and critical infrastructure sectors often require a combination of these services to satisfy NACSA licensing requirements, BNM RMiT technology risk controls, or PDPA personal data protection obligations.
Network and Infrastructure Penetration Testing
External penetration testing targets public-facing IP addresses exposed to the internet and is sized by the number of public IPs in scope. This form of penetration testing simulates an attacker operating entirely from outside your network perimeter. Internal penetration testing targets private network segments — accessed via VPN or on-site — and is sized by the number of private IPs and network locations. Related services include Network Device Configuration Review (sized by firewall, switch, and router count), Wi-Fi Penetration Testing (sized by SSIDs and physical locations), and Network Architecture Review (sized by number of diagrams).
Web Application Penetration Testing
Web application testing follows the OWASP Top 10 methodology and is the most commonly requested service among Malaysian organisations operating customer-facing portals or banking apps. Sizing is based on application complexity — specifically: number of unique input parameters, user privilege levels, static and dynamic pages, HTML forms, file upload points, and web service APIs. Testing can be Black Box (no credentials — simulates an external attacker) or White Box (authenticated across all user roles — more thorough).
Mobile Application Penetration Testing
Mobile application penetration testing covers Android and iOS. Sizing is driven by the number of application components (screens, background services), number of remote web service APIs the app calls, and number of user roles. We also factor in whether the app is in development (source code available) or production-ready. Malaysian fintech and e-government applications frequently require mobile app testing under BNM RMiT and NACSA guidelines.
API and Web Service Penetration Testing
API testing is scoped separately from web application testing, particularly where REST or SOAP services expose business-critical functions. Each API is sized by the number of endpoints it exposes, the protocol used, and whether the API is transactional, dynamic, or static. Financial sector organisations regulated by Bank Negara Malaysia (BNM) routinely require API testing for their payment interfaces and customer data services.
Source Code Review
Unlike dynamic penetration testing, source code review — Static Application Security Testing (SAST) — involves reviewing the application codebase for security vulnerabilities before deployment. It is sized by total lines of code or source code archive size, and by programming language. This is particularly relevant for Malaysian software vendors seeking NACSA licensing or demonstrating PDPA-compliant privacy-by-design practices.
Social Engineering Testing
Social engineering assessments test the human layer of security. Services include email phishing simulations, voice phishing (vishing), ransomware simulations, and USB drop exercises. These are sized by the number of target users or call attempts. MyCERT advisories consistently identify phishing as the leading initial access vector for Malaysian organisations — making this a high-priority assessment for any serious security programme.
Compromise Assessment and Forensic Investigation
A Compromise Assessment determines whether an organisation has already been breached without knowing it. It is sized by the number of production nodes, network segments, and DR coverage requirements, and includes memory forensics and network traffic analysis. Forensic Investigation is triggered post-incident — typically following a ransomware attack — and is scoped by the number of affected devices and disk capacity.
Red Team and Intelligence-Led Penetration Testing
Red team penetration testing simulates a realistic multi-stage attack across external networks, internal networks, web applications, and personnel. Scope is defined by attack scenarios, target entities, critical servers, domains, and personnel count. Simply Data, as a NACSA-licensed provider, is authorised to conduct red team exercises for Malaysian Critical Information Infrastructure (CII) operators. Our engagements are informed by threat intelligence on APT groups active in Southeast Asia targeting Malaysian financial and government sectors.
How Does Simply Data Size a VAPT Project?
Every penetration testing scope starts from a structured Scope Requirements Form. Common sizing inputs include:
- Network tests: number of public IPs, private IPs, network devices, site locations
- Web apps: number of pages, forms, user roles, integrated APIs
- Mobile apps: platform (Android/iOS), number of screens and API calls, user roles
- Server hardening: number and OS version of each server (e.g., 10 x Windows Server 2022, 5 x Linux RHEL 9)
- Cloud assessments: number of cloud platforms, virtual instances, database instances
- OT/SCADA: number and model of SCADA devices, site locations
Once inputs are collected, we map them against our effort matrix to produce a Statement of Work with defined objectives, methodology, deliverables, and timeline.
What Are the Different Assessment Modes?
Remote vs Onsite: External tests, web app tests, and source code reviews are typically conducted remotely. Internal network tests, Wi-Fi assessments, and physical audits require on-site presence. For remote internal tests, the client provides VPN access.
Black Box vs White Box: Black box simulates an attacker with no prior knowledge. White box provides credentials and architecture documentation — enabling a more comprehensive assessment. For Malaysian financial institutions under BNM RMiT, white box testing on critical systems is recommended.
Working Hours vs After Hours: Organisations with 24/7 uptime requirements — Malaysian banks, hospitals, utilities under NACSA’s Critical Information Infrastructure framework — typically opt for after-hours testing windows to avoid business disruption.
What Are the Penetration Testing Deliverables?
Every Simply Data penetration testing engagement delivers a structured report covering: an executive summary for board review; risk-rated findings aligned to ISO 31000 with CVE references; full technical evidence with reproduction steps; and prioritised remediation recommendations. Reports are formatted to support PDPA audit documentation, BNM RMiT compliance records, and NACSA submissions. Organisations pursuing ISO 27001 can use VAPT findings directly as input into their risk treatment plan.
Ready to scope your penetration testing project? Contact the Simply Data team and we will walk you through the requirements form for each service type.