There's a fundamental problem with relying solely on defensive security: you're building walls without ever testing whether someone can climb them.

Vulnerability Assessment and Penetration Testing exists to answer one question honestly — where can an attacker actually get in, and how far can they go once they're inside? Everything else in cybersecurity — your firewalls, your EDR, your access controls, your security policies — is based on assumptions. VAPT replaces assumptions with evidence.

InTechsters approaches VAPT differently from firms that run an automated scan, generate a 200-page PDF, and leave you to figure it out. We combine automated vulnerability scanning with hands-on, expert-led manual penetration testing across every layer of your technology stack — networks, web applications, mobile apps, thick clients, APIs, cloud environments, IoT devices, OT/SCADA systems, containers, and more. And we don't stop at finding vulnerabilities. We prove exploitability, demonstrate real business impact, and give you a clear, prioritized plan to fix what matters most.

Vulnerability Assessment

Internal Vulnerability Assessment — Scanning internal networks, servers, workstations, and devices to identify weaknesses accessible from within your organization — simulating what an insider or compromised employee device could see.

External Vulnerability Assessment — Assessment of all internet-facing assets — public IPs, domains, web servers, mail servers, VPN gateways — to identify what's exposed and exploitable from the outside.

Authenticated & Unauthenticated Scanning — Both credentialed scans for deep system-level visibility and unauthenticated scans that show what an external attacker would discover without any access.

Configuration & Hardening Review — Evaluation of system, application, network device, and cloud configurations against CIS Benchmarks, vendor hardening guides, and security best practices.

Patch Gap Analysis  — Identification of missing security patches, outdated software versions, unsupported operating systems, and end-of-life components across your environment.

Continuous / Recurring Vulnerability Scanning — Scheduled scanning programs that provide ongoing visibility into your vulnerability posture as systems change, new software is deployed, and new CVEs are published.

Asset Discovery & Attack Surface Mapping — Discovery of all network-connected assets — including shadow IT, forgotten development servers, unauthorized IoT devices, and cloud resources that aren't in your official inventory.

Risk-Ranked Reporting (CVE / CVSS) — Every finding mapped to CVE identifiers with CVSS severity scoring, exploitability context, and business impact assessment for prioritized remediation.

Network Penetration Testing

External Network Penetration Testing  — Simulated attacks against your perimeter — firewalls, web servers, mail gateways, VPNs, DNS, and all publicly reachable services.

Internal Network Penetration Testing — Testing from an insider perspective — what can a compromised workstation, a malicious contractor, or a rogue employee reach inside your network?

Wireless Network Penetration Testing (WiFi, Bluetooth, NFC) — Assessment of wireless security including WPA2/WPA3 configuration, rogue access point detection, evil twin attacks, Bluetooth vulnerability testing, and NFC attack vectors.

Network Segmentation Testing — Validation that your segmentation controls actually work — testing whether an attacker in one zone can reach systems in another.

Firewall & IDS/IPS Evasion Testing  — Testing whether your perimeter defenses can be bypassed using fragmentation, tunneling, encoding, and other evasion techniques.

VPN & Remote Access Testing — Assessing your VPN configurations, remote desktop gateways, and zero-trust access implementations for authentication weaknesses and exploitable misconfigurations.

Application Penetration Testing

Web Application Penetration Testing (OWASP Top 10)  — Comprehensive testing for injection flaws, broken authentication, XSS, insecure deserialization, SSRF, security misconfigurations, and all OWASP Top 10 vulnerabilities — plus business logic flaws specific to your application.

Mobile Application Penetration Testing (Android & iOS) — Security assessment of mobile apps including local data storage, transport layer security, certificate pinning, authentication flows, binary protections, reverse engineering resistance, and platform-specific attack vectors.

Thick Client / Desktop Application Penetration Testing — Testing of desktop and client-server applications for memory manipulation, DLL injection/hijacking, insecure local storage, registry abuse, inter-process communication flaws, hardcoded credentials, and reverse engineering vulnerabilities.

API Penetration Testing (REST, GraphQL, SOAP) — Evaluation of API endpoints for broken authentication, broken object-level authorization (BOLA), injection flaws, mass assignment, rate limiting bypass, data exposure, and business logic abuse.

Single Page Application (SPA) Testing  — Security assessment of JavaScript-heavy frontend applications including client-side routing, token storage, DOM-based XSS, postMessage abuse, and API interaction security.

SaaS Application Security Testing — Evaluation of SaaS platform configurations, integration security, OAuth implementation, data handling practices, and tenant isolation mechanisms.

Specialized Penetration Testing

Cloud Penetration Testing (AWS, Azure, GCP)  — Authorized testing of cloud environments targeting IAM privilege escalation, storage bucket exposure, compute instance vulnerabilities, serverless function abuse, and cloud-native service misconfigurations.

Cloud Configuration Review — Automated and manual assessment of cloud configurations against CIS Benchmarks, AWS Well-Architected Framework, Azure Security Benchmark, and GCP security best practices.

Container & Kubernetes Security Testing — Assessment of Docker images, Kubernetes cluster configurations, RBAC policies, network policies, secrets management, pod security standards, and container escape vectors.

IoT Device Penetration Testing — Hardware and software security testing of connected devices — firmware extraction and analysis, communication protocol assessment (MQTT, CoAP, Zigbee, LoRa, BLE), debug interface testing (JTAG, UART), and cloud backend evaluation.

OT / SCADA / ICS Penetration Testing  — Careful, controlled assessment of operational technology environments — SCADA systems, PLCs, DCS, HMIs, and industrial protocols (Modbus, DNP3, OPC UA, BACnet) — conducted with extreme care to avoid operational disruption, aligned with IEC 62443 and NIST 800-82.

Embedded Systems & Firmware Security Testing — Hardware-level assessment including firmware extraction, binary analysis, JTAG/SWD debug access, side-channel analysis, and hardware tampering resistance evaluation.

Mainframe Penetration Testing — Security assessment of z/OS environments including CICS/IMS region testing, RACF/ACF2/TopSecret configuration review, and mainframe application vulnerability assessment.

AI / LLM Application Security Testing — Testing AI-powered applications for prompt injection, jailbreaking, model manipulation, data poisoning, training data extraction, and output sanitization failures.

Blockchain / Web3 Application Security Testing — Smart contract auditing (Solidity, Rust), dApp security testing, wallet integration assessment, and protocol-level vulnerability analysis.

ATM & POS Terminal Security Testing — Physical and logical security assessment of ATM machines and point-of-sale terminals for skimming vulnerabilities, network interception, application tampering, and authentication bypass.

Medical Device Security Testing — Assessment of connected medical devices aligned with FDA pre-market and post-market cybersecurity guidance, covering device communication, data protection, and software vulnerability analysis.

Automotive Cybersecurity Testing — Assessment of connected vehicle systems, infotainment platforms, CAN bus security, telematics, OBD-II interfaces, and V2X communication, aligned with ISO/SAE 21434.

Red Team & Social Engineering

Red Team Operations (Full Adversary Simulation)  — Multi-phase, objective-based attack simulation that mimics a real adversary — testing your detection capabilities, incident response, and organizational resilience across people, processes, and technology simultaneously.

Purple Team Exercises — Collaborative engagements where our offensive team works alongside your defensive team in real time — testing specific detections, identifying visibility gaps, and building better response playbooks together.

Phishing Simulations (Email, SMS & Voice) — Controlled phishing, smishing, and vishing campaigns that test employee awareness and resilience, with detailed metrics, click-through analysis, and targeted awareness recommendations.

Physical Security Assessment & Social Engineering — On-site testing of badge access, tailgating, lock bypass, secure area entry, and employee willingness to challenge unauthorized individuals.

Pretexting & Impersonation Testing  — Scenario-based social engineering using crafted pretexts — impersonating vendors, IT support, executives, or auditors — to test how employees handle unexpected requests for access or information.

USB Drop / Baiting Campaigns — Controlled deployment of USB devices in physical locations to test whether employees connect unknown media to corporate systems, with full tracking and reporting.

Source Code & Architecture Review

Source Code Review (SAST) — Manual and automated static analysis of application source code to identify injection flaws, authentication weaknesses, insecure cryptography, hardcoded secrets, race conditions, and business logic vulnerabilities before deployment.

Secure Architecture Review — Evaluation of your application and infrastructure architecture for design-level security weaknesses, trust boundary violations, improper data flow, and defense-in-depth gaps.

Threat Modeling — Structured identification and prioritization of potential threats using STRIDE, PASTA, or DREAD frameworks to inform secure design decisions and development priorities.

What You Get

Executive Summary — A clear, jargon-light overview of findings and risk posture written for leadership and board-level audiences.

Technical Report with Proof-of-Concept — Detailed documentation of every finding, including reproduction steps, payloads, screenshots, and attack chain walkthroughs.

CVSS Risk-Ranked Vulnerability Register — Every vulnerability cataloged with CVE references, CVSS scores, exploitability ratings, and business impact context.

Remediation Guidance & Prioritization — Actionable fix recommendations for every finding, prioritized by risk, exploitability, and effort so your team knows exactly where to start.

Remediation Validation / Retesting — After you've fixed the issues, we come back and verify the fixes are effective and haven't introduced new weaknesses.

Compliance-Mapped Reporting — Findings mapped to PCI-DSS, HIPAA, SOC 2, ISO 27001, NIST, and other frameworks for audit evidence and regulatory documentation.

Frequently Asked Questions

How is this different from just having a SIEM?

A vulnerability assessment identifies known weaknesses through automated scanning. A penetration test goes further — our ethical hackers actively exploit vulnerabilities, chain attack paths, and demonstrate what a real attacker could achieve. You need both for a complete picture.

How often should we conduct VAPT?

At minimum, annually — and after any significant infrastructure change, application release, or merger/acquisition. Many organizations move to quarterly or continuous testing for their most critical assets.

Will penetration testing disrupt our production systems?

We design every engagement to minimize risk. We coordinate timing, define scope boundaries, and use careful techniques. For OT/SCADA environments, we take additional precautions to ensure zero impact on operational systems.

Do you provide retesting after we fix the vulnerabilities?

Yes. Every engagement includes a remediation validation window where we retest fixed vulnerabilities to confirm they've been properly addressed.

Can you test systems we don't own, like third-party SaaS?

We can assess your configuration and integration with third-party platforms. Testing the third party's own infrastructure requires their authorization — we can help coordinate that process if needed.