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Penetration testing · Security assessment · Advisory

Security testing that stands up to scrutiny.

Hexkey provides penetration testing, security assessments, and cybersecurity advisory services for organizations that need to understand where they're exposed and what to do about it.

We work with software companies, technology teams, and growing organizations to identify meaningful security weaknesses, strengthen critical systems, and support security and compliance requirements.

Sample report extractExternal web application
CriticalObject-level authorization bypass on /api/v2/accounts
HighSession token not rotated after privilege change
MediumStorage bucket permits unauthenticated listing
LowVerbose error responses disclose stack traces
Method
Grey box
Standard
OWASP ASVS 4.0
Retest
Included
What we do / 01

Security expertise where it matters.

We assess the systems you build, the infrastructure they run on, and the controls that protect them. Our work spans offensive security, independent security assessment, and hands-on security engineering.

Offensive security

Penetration testing and vulnerability assessments across web applications, APIs, networks, cloud environments, and infrastructure.

We identify vulnerabilities that can be exploited, validate their impact, and provide technical guidance for remediation.

Security assurance

Independent security assessments designed to identify weaknesses in security controls and support programs such as SOC 2, PCI DSS, HIPAA, ISO 27001, NIST CSF, and CIS Controls.

We help you understand where your security posture aligns with expectations and where additional work is needed.

Security engineering & advisory

Security architecture reviews, threat modeling, cloud security, application security, and strategic guidance for organizations building or improving their security programs.

We work directly with engineering, IT, security, and leadership teams to turn security requirements into practical decisions.

Penetration testing / 02

Find what can actually be exploited.

A vulnerability matters because of what an attacker can do with it.

Hexkey performs controlled security testing to identify exploitable weaknesses across applications, APIs, networks, cloud environments, authentication systems, and access controls.

Our testing combines systematic assessment with manual investigation. We examine how systems behave, how controls can be bypassed, and how individual weaknesses can be combined to create meaningful risk.

Confirmed findings include the technical evidence needed to understand the issue, its severity and impact, and clear recommendations for remediation.

Evidence · sanitized
GET /api/v2/accounts/4182/statements HTTP/1.1
Host: app.example.com
Authorization: Bearer <token: user 9930>
HTTP/1.1 200 OK
Content-Type: application/json
{"account_id":4182,"owner":"<redacted>","statements":[…]}
We test
01

Web applications

Application logic, authentication, authorization, session management, input handling, and other application-layer controls.

02

APIs

Authentication, object-level authorization, data exposure, endpoint behavior, business logic, and API-specific attack paths.

03

Networks & infrastructure

Internet-facing and internal systems, exposed services, network controls, configuration weaknesses, and infrastructure attack paths.

04

Cloud environments

Cloud configuration, identity and access management, exposed resources, permissions, secrets, network architecture, and other cloud-specific risks.

Capabilities / 03

Built for modern technology environments.

Our work covers the systems and controls that modern organizations depend on.

Web applications
APIs
Cloud infrastructure
Networks
Identity & access
Containers
CI/CD
Security architecture

We work with engineering and security teams throughout an engagement so findings are understood in the context of the systems that produced them.

Security & compliance / 04

Independent security testing for compliance programs.

Security frameworks increasingly require organizations to demonstrate that their systems and controls have been independently assessed.

Hexkey provides security testing and assessment services that support organizations working toward or maintaining programs including:

SOC 2
PCI DSS
HIPAA
ISO 27001
NIST CSF
CIS Controls
Flagship

SOC 2

Penetration testing is a common part of a mature SOC 2 security program and is frequently requested by auditors, customers, and enterprise security teams.

Hexkey performs independent penetration testing and security assessments for organizations preparing for or maintaining SOC 2. We provide clear documentation of the scope, testing performed, findings, remediation recommendations, and validation of corrected issues where applicable.

We can work alongside your internal team, compliance platform, or auditor while remaining independent from the audit itself.

Hexkey provides security testing and advisory services. We do not act as your certification body or auditor.

Our approach / 05

Four steps, no surprises.

Security engagements should be technically rigorous without being difficult to manage.

01 — Scope

We start by understanding the systems being assessed, your objectives, relevant technology, and any security or compliance requirements.

The scope and testing boundaries are agreed upon before testing begins.

02 — Test

We assess the agreed environment using a combination of systematic testing and manual investigation.

When we confirm a meaningful issue, we document the evidence necessary to understand and reproduce it.

03 — Report

You receive prioritized findings that explain what we found, why it matters, and what should change.

Technical findings include severity, evidence, affected systems, and practical remediation guidance.

04 — Validate

Where appropriate, we retest corrected findings to confirm that remediation addresses the underlying vulnerability.

The objective is not simply to close a finding. It is to verify that the issue has actually been resolved.

Beyond penetration testing / 06

Security is more than a point-in-time test.

Hexkey works with organizations before and after formal security assessments to identify risk, improve architecture, and strengthen security programs as their systems evolve.

Vulnerability assessments

Identify and prioritize security weaknesses across applications, infrastructure, and cloud environments.

Cloud security

Assess cloud architecture, permissions, exposure, configuration, secrets, logging, and data protection.

Security architecture

Review system design, authentication, authorization, APIs, infrastructure, and security controls before weaknesses reach production.

Security advisory

Support security strategy, risk management, security program development, compliance planning, and technical decision-making.

Continuous security

Provide recurring assessments, remediation validation, vulnerability management, and ongoing security guidance.

Incident readiness

Prepare for security incidents through response planning, tabletop exercises, logging reviews, and recovery planning.

Closing

Clear answers about where you're exposed.

Good security work should leave you with a clear understanding of what was tested, what was found, what matters most, and what needs to change.

Whether you're preparing for a penetration test, responding to a security requirement, evaluating an application or cloud environment, or strengthening an existing security program, we're available to discuss what you need.