Vulnerability Assessment & Penetration Testing

We break it before someone else does.

Manual, adversary-minded testing across your applications, APIs, mobile apps, internal networks and AI systems.

Overview

Scanners find the obvious. Our testers chain the subtle issues together the way real attackers do, prove the impact, and show your team exactly how to fix it. Every engagement is scoped to your risk, not a template.

  • Verified, exploitable findings — no scanner noise
  • Clear risk ratings mapped to business impact
  • Developer-ready remediation guidance
  • Free retest of fixed findings

What We Test

Web Application

Authentication, authorization and business-logic flaws, injection, SSRF, and everything in between, tested against the OWASP Top 10 and beyond.

API

REST, GraphQL and gRPC endpoints tested for broken object-level authorization, mass assignment, rate-limit bypass and data exposure.

Mobile

iOS and Android apps assessed on-device and in transit: insecure storage, certificate pinning, reverse engineering and backend abuse.

AI / LLM

Prompt injection, data leakage, insecure tool use and model abuse in LLM-powered features and agents.

Our Approach

  1. 01

    Scope

    We agree targets, rules of engagement and testing windows with your team.

  2. 02

    Recon & mapping

    We enumerate the attack surface and model how an attacker would approach it.

  3. 03

    Exploitation

    Hands-on testing to confirm vulnerabilities and chain them into real impact.

  4. 04

    Report & retest

    A clear report, a walkthrough call, and a retest once fixes are in.

What You Receive

  • Executive summary
  • Technical findings with proof-of-concept
  • Remediation guidance
  • Retest letter / attestation

Common Questions

How long does a test take?

Most engagements run one to three weeks depending on scope. We will give you a firm timeline with the quote.

Will testing disrupt production?

We agree safe testing windows and rules of engagement up front, and avoid destructive techniques unless you approve them.

Do you provide compliance-ready reports?

Yes. Reports are suitable for SOC 2, ISO 27001, PCI DSS and customer security questionnaires.

Other Services

Get a Quote

Tell us about your environment and what you need tested. We will reply with a scoped proposal — usually within one business day.

or email hello@zentero.io