Security
Vulnerability Identification Services
Discover what you have, find the weaknesses attackers would use and fix the ones that matter first, with prioritization based on exploitability and business impact.
Know Your Weaknesses Before Attackers Do
Most successful attacks exploit weaknesses that were already known: an internet-facing server missing a patch, a cloud storage bucket left public, default credentials on an admin panel or an API that returns other customers’ data when an ID is changed. The problem is rarely a lack of scanner output. It is too many findings, incomplete asset inventories and no reliable way to decide which issues to fix this week and which can wait.
Hanoi Technology combines automated discovery and scanning with manual testing by engineers who understand how applications and cloud platforms are built. We map your attack surface, test infrastructure, cloud, web applications, mobile apps and APIs, and prioritize findings using severity, real-world exploitation signals and the business value of each asset. You receive clear, reproducible findings and remediation guidance your teams can act on.
The Challenge
Why Vulnerability Management Falls Behind
Vulnerability programs often struggle with volume, visibility and prioritization.
Incomplete Asset Inventory
Shadow IT, forgotten test environments, new cloud accounts and SaaS integrations mean many assets are never scanned at all.
Overwhelming Finding Volumes
Scanners report thousands of issues, and ranking by CVSS base score alone marks too many as critical to fix in practice.
Scanners Miss Logic Flaws
Broken access control, insecure business logic and authentication weaknesses in applications usually require manual testing to discover.
Remediation Without Follow-Through
Findings are handed to IT and development teams without context, owners or deadlines, and nobody verifies the fixes.
Business Value
Benefits of Risk-Based Vulnerability Identification
Focus on What Attackers Exploit
Prioritization that considers active exploitation, exploit likelihood and asset exposure directs effort to the highest real risk.
Complete Visibility
External attack surface discovery and cloud inventory reveal assets that internal records missed.
Fewer Application Breaches
Manual testing against the OWASP Top 10 and OWASP API Security Top 10 uncovers flaws automated tools overlook.
Faster, Verified Remediation
Clear reproduction steps, fix guidance and retesting shorten the time from discovery to closure.
Evidence for Customers and Auditors
Reports and retest results support security questionnaires, ISO/IEC 27001, SOC 2 and PCI DSS requirements.
Security Built into Releases
Recurring testing aligned with release cycles keeps new features from reintroducing old weaknesses.
Prioritize by Exploitability, Not Just Severity
Industry practice has moved beyond ranking by CVSS score alone. Combining severity with signals such as the CISA Known Exploited Vulnerabilities catalog and the FIRST Exploit Prediction Scoring System, plus your own asset context, produces a much shorter and more meaningful list of what to fix first.
Our Services
Hanoi Technology’s End-to-End Vulnerability Identification Services
Assessment and testing services across your technology landscape.
Attack Surface Discovery
We identify internet-facing domains, IP ranges, cloud services, exposed ports and forgotten applications associated with your organization.
- External asset inventory
- Exposed service analysis
- Shadow IT findings
Infrastructure Vulnerability Assessment
We scan internal and external networks, servers and endpoints with authenticated scans where possible, and validate key findings manually.
- Authenticated and unauthenticated scans
- Validated findings
- Patch and configuration recommendations
Cloud Security Posture Review
We review AWS, Azure and Google Cloud configurations for identity, network, storage, logging and encryption against benchmarks such as CIS.
- Cloud configuration findings
- IAM and exposure analysis
- Benchmark comparison
Web Application and API Penetration Testing
We test applications and APIs manually and with tools for injection, broken access control, authentication flaws and business logic issues.
- OWASP-aligned test coverage
- Proof-of-concept evidence
- Developer-focused remediation guidance
Mobile Application Security Testing
We assess iOS and Android apps for insecure storage, weak transport security, hard-coded secrets and backend API weaknesses, following OWASP MASVS.
- Static and dynamic app analysis
- Backend API testing
- MASVS-aligned report
Code and Dependency Analysis
We review source code, open-source dependencies and container images for vulnerable components, secrets and insecure patterns.
- SAST and SCA results
- Software bill of materials
- Secrets exposure report
Our Approach
Our Vulnerability Identification Process
A structured process that turns findings into fixed, verified risks.
- 01
Scope and Rules of Engagement
We agree targets, testing windows, techniques, credentials and contacts, and document them in signed rules of engagement.
Deliverables: Scope document · Rules of engagement
- 02
Discover and Map
We enumerate assets and map applications, APIs and cloud resources, confirming the inventory with your team.
Deliverables: Asset inventory · Attack surface map
- 03
Scan and Test
We run automated scans and manual testing, validating findings to remove false positives.
Deliverables: Validated findings · Evidence and reproduction steps
- 04
Prioritize and Report
We rank findings by severity, exploitation signals and asset context, and present them to technical and management audiences.
Deliverables: Technical report · Executive summary and risk ranking
- 05
Remediate and Retest
We support teams with fixes and retest to confirm closure, then recommend a cadence for ongoing testing.
Deliverables: Retest report · Ongoing testing plan
Use Cases
Vulnerability Identification Use Cases
Common reasons organizations engage us for testing.
Pre-Launch Application Testing
A startup tests its new web and mobile app before public launch, fixing access control flaws found in its API.
Customer Security Questionnaire Support
A B2B SaaS provider commissions a penetration test to provide evidence requested by enterprise buyers.
Cloud Account Review
A company with several AWS accounts discovers public storage and overly broad IAM roles through a posture review.
Post-Acquisition Assessment
An acquirer assesses the external attack surface and critical applications of a newly acquired business.
PCI DSS Testing Support
A payment-handling business performs internal and external testing and segmentation checks to support its compliance obligations.
Continuous Testing in DevOps
A product team adds recurring scans and periodic manual testing aligned with major releases.
Technology
Tools We Use for Vulnerability Identification
We combine commercial and open-source tools with manual expertise.
- Tenable Nessus
- Qualys VMDR
- Rapid7 InsightVM
- Burp Suite Professional
- OWASP ZAP
- Nmap
- Nuclei
- Metasploit
- Wiz
- Prowler
- ScoutSuite
- Trivy
- Snyk
- Semgrep
- MobSF
- Frida
Platforms
Deliver Vulnerability Identification on Your Preferred Platform
Why Hanoi Technology
Why Organizations Choose Hanoi Technology
Senior, Cross-Functional Teams
Strategy, data, AI, cloud and engineering specialists work as one team, so nothing is lost between hand-offs.
Proven Delivery
More than 50 projects delivered for clients in North America, Europe and Asia-Pacific.
Radical Transparency
A written update every week and a demo of working software every sprint, so you always know where things stand.
Cost-Effective Global Delivery
Experienced engineers from our Hanoi delivery hub, with working-hour overlap for every major time zone.
Success Story · Fintech
All-in-one digital banking app for a traditional bank
A traditional financial institution wanted to compete with neobanks for mobile-first customers. We replaced a set of separate banking, investing and payment apps with one product that people use every day.
Read the Full StoryMore Success Stories
HR tech
80%faster hiring processAI candidate screening and matching for an HR tech startup
An HR tech startup processing thousands of applications a month needed recruiters to spend less time screening CVs. We built resume parsing, job matching and an automated shortlisting workflow.
Resources
Featured Resources
Industry trends and practical guidance to help you get more value from data, AI and technology.
FSMA 204 After the Delay: Using Shipment Monitoring to Get Traceability-Ready by 2028
The FDA Food Traceability Rule deadline moved to July 2028, but the data work is large. Here is how to use shipment monitoring and event data to get ready without wasting the extra time.
CSRD After the Omnibus: What the Revised ESRS Mean for Reporting From 2027
The Omnibus and the simplified ESRS reshaped EU sustainability reporting in 2026. Here is who is in scope, what changed in the standards and how to adapt your data and process.
OpenTelemetry in 2026: Building a Vendor-Neutral Observability Strategy
OpenTelemetry has become the default way to collect telemetry. Here is what changed in 2026 and a practical roadmap for a vendor-neutral observability stack.
Discover Your Vulnerabilities Before Attackers Do
Tell us what you need tested and when. We will reply within 24 hours and arrange a free consultation to define the right scope.
Vulnerability Identification FAQ
What is the difference between a vulnerability assessment and a penetration test?
A vulnerability assessment uses automated scanning and configuration review to find as many known weaknesses as possible across a broad set of assets. A penetration test goes deeper on a defined scope, with testers manually exploiting weaknesses and chaining them to show what an attacker could actually achieve. Most organizations benefit from regular assessments for coverage and periodic penetration tests for depth, especially on critical applications.
How do you prioritize vulnerabilities?
We start with technical severity, typically CVSS, then add signals about real-world exploitation, such as whether a vulnerability appears in the CISA Known Exploited Vulnerabilities catalog and its EPSS probability. We combine these with your context: whether the asset is internet-facing, what data it handles and whether compensating controls exist. The result is a ranked list that tells your teams what to fix first and what can be scheduled.
Will testing disrupt our production systems?
We design testing to minimize risk. Scope, timing and techniques are agreed in advance, potentially disruptive tests such as heavy load or denial of service are excluded unless explicitly requested, and we can test in staging environments that mirror production. We monitor for unexpected effects during testing and have a direct contact on your side to stop or pause immediately if anything unusual happens.
How often should we test?
We recommend continuous or at least monthly automated scanning of internet-facing assets, quarterly internal scanning and a manual penetration test of critical applications at least annually and after major changes. Many frameworks and customers expect annual testing as a minimum. For teams releasing frequently, aligning lighter tests with significant releases provides better coverage than one large annual test.
What does a typical report include?
You receive an executive summary describing overall risk in business terms, followed by detailed findings with severity, affected assets, evidence, reproduction steps and specific remediation guidance. We also include positive observations and strategic recommendations. Reports are delivered through a secure channel, and we hold a walkthrough session with technical and management stakeholders. After remediation, a retest report confirms which issues are closed.
What determines the cost of testing?
Cost depends mainly on the number and complexity of applications, APIs, hosts and cloud accounts in scope, whether testing is authenticated, the depth of manual testing, the number of user roles and environments, and any compliance-specific requirements. A focused web application test is a short engagement, while a broad infrastructure and application program takes longer. We provide a fixed scope and estimate after a scoping call.