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Penetration Testing Services in Chicago

Penetration testing for Chicago organisations: web applications, external and internal networks, APIs, cloud and mobile, delivered remote-first across your working hours by senior CREST-certified consultants, with reporting built for the auditors, regulators and enterprise clients who will actually read it.

Chicago spans trading and derivatives infrastructure, national manufacturing and logistics headquarters, and major healthcare systems. Our Central-time engagements test everything from latency-sensitive trading estates to ERP-connected plant networks, remote-first, with senior testers who have worked regulated finance and industrial environments.

SOC 2 Aligned Reporting HIPAA Aware Testing OSCP Certified Testers CISSP Certified CREST International Accreditation

Get Your Fixed-Fee Quote

Tell us what needs testing. You’ll get a scoped, fixed-fee quote back the same business day, from a senior assessor, not a sales rep. No obligation, no spam.

✓ Same-day response✓ Fixed-fee, no surprises✓ Senior testers only✓ Retest included

We reply within one business day with next steps. Your details are used only to scope your enquiry, never shared or sold.

WHY US TEAMS CHOOSE REDSECLABS
Production-safe testing for regulated Chicago estates
Trading floors, plant networks and hospital systems cannot go down. We agree change windows and no-strike lists up front, flag critical findings the same day, and map results to HIPAA, PCI DSS and NIST, with a retest included.
Who we test for in Chicago
Trading and financial infrastructure, manufacturing, healthcare and logistics lead our Chicago engagements, with HIPAA-adjacent scoping and supply-chain security questionnaires as the common drivers.
✓ ✓ HIPAA & PCI-mapped reporting · ✓ Production-safe methodology · ✓ OSCP-certified testers · ✓ QSA-led methodology · ✓ Same-day scoping response · ✓ Executive + technical reports · ✓ Retest included
Who this is for

This service is a fit if you’re..

1
Trading & financial infrastructure
Platforms where testing must respect change freezes, latency sensitivity and strict production-safety rules.
2
Manufacturing & logistics groups
National headquarters estates where corporate IT borders plant and warehouse systems that cannot go down.
3
Healthcare systems
Provider and payer environments where HIPAA safeguards and PHI handling shape scope and test data.
CREST
Member company
CRT & CCT
Senior tester certs
CREST
Member company
48h
Scoping turnaround

Why Chicago buyers choose an accredited tester

Chicago’s trading, manufacturing and healthcare estates share one requirement: proof that whoever touches production knows what they are doing. CREST membership is an internationally recognised, independently audited standard that answers exactly that, evidence of tester competence and a documented ethical framework, before a single system is touched.

For regulated finance the report feeds risk committees; for healthcare it maps to HIPAA safeguards; for manufacturers it answers the supply-chain questionnaires primes now send. Accreditation plus production-safe methodology is what lets us test hard without breaking the systems that cannot go down.

Independently audited competence, the assurance risk committees and auditors expect

Findings mapped to HIPAA, PCI DSS and NIST rather than a one-size template

Production-safe methodology documented in the rules of engagement before testing starts

Why CREST matters

Penetration testing is unregulated in most jurisdictions, anyone can call themselves a penetration tester and many providers do. CREST exists specifically to provide a recognised quality signal that buyers can rely on without running their own competency assessments on every vendor.

For regulated sectors, CREST has effectively become a procurement requirement: SOC 2 auditors and enterprise security teams expect independent accreditation; cyber insurers increasingly require it; enterprise security teams use CREST as a vendor pre-qualification filter.

Without CREST-grade testing, organisations face:

Disqualification from financial sector threat-led testing programmes

Failed enterprise security reviews requiring CREST evidence

Variable test quality across providers without quality framework

Compliance audit findings on penetration testing rigour

Reduced confidence in test results from board and audit committees

Inability to evidence ethical conduct framework to regulators

CREST accreditation is the cheapest way to remove a major variable from your vendor selection, and the strongest external signal of testing quality.

Built for how Chicago organisations buy testing

Chicago engagements come with operational constraints attached: trading estates with tight change windows, plants and distribution networks that cannot tolerate disruption, hospital systems where PHI governs everything. We scope around those realities, agreed test windows, production-safe tooling, no-strike lists for OT-adjacent systems, and prove it in the rules of engagement before anything starts.

Delivery runs Central hours with senior testers who have worked regulated finance and industrial environments. Vendor onboarding paperwork, NDAs, insurance certificates, security questionnaires, is handled without slowing your procurement team down.

How engagements run for Chicago teams

Scoping separates what must never break from what must be tested hard, then sequences the work: external and cloud first, internal and segmentation next, sensitive segments under tighter controls last. Findings are mapped to the frameworks your stakeholders use, HIPAA safeguards for health systems, PCI DSS where card data flows, NIST for enterprise programmes.

Every engagement closes with a remediation debrief, an included retest of fixed findings, and reporting split by audience: technical detail for engineers, risk narrative for leadership, evidence for auditors.

What you receive

Every CREST penetration test with RedSecLabs includes:

  • Signed rules of engagement aligned to CREST guidance
  • Executive summary for board and management consumption
  • Detailed technical findings with exploitation evidence
  • CVSS-rated and exploitability-prioritised findings
  • Practical remediation guidance for every issue
  • CREST-format compliance attestation for audit evidence
  • Live findings walk-through with your technical team
  • Remediation retest of critical and high findings

Industries We Serve

We deliver this service across these industries:

Financial Services
Healthcare
SaaS & Technology
E-commerce & Retail
Defence & Government
Cloud & Managed Services
Education
Professional Services

Why RedSecLabs for CREST testing

Every CREST member company differs in how it delivers within the framework. We staff every engagement with senior CREST-certified testers, never juniors operating under loose supervision, and our reports are explicitly structured to the standard CREST-aware buyers expect. The result is testing that withstands the audit-committee, regulator, and enterprise-security scrutiny our clients put it under.

CREST member company under continuous audit
CREST CRT and CCT certified testers
Manual testing, not automated scan output
CREST-format compliance-ready reports
Remediation retest included
CREST member company

Get My Fixed-Fee Quote

Book a free 30-minute scoping call. CREST-format proposal within 48 hours, engagement starts within 1-2 weeks.

Book a Scoping Call Contact Us

Where to next

Related services and industry packages worth exploring.

US Penetration Testing

Web Application Testing

API Penetration Testing

AWS Penetration Testing

Penetration Testing UK

Red Team Assessment

Frequently Asked Questions

CREST audits member companies against a quality framework covering methodology documentation, tester competence (mandatory CREST-certified individuals), ethical conduct, ongoing professional development, complaint handling, and operational quality. Membership is reviewed periodically and can be withdrawn. It is the strongest single quality signal for penetration testing providers.

CREST Registered Tester (CRT) is the entry-level individual certification, passed after demonstrating practical infrastructure testing competence. CREST Certified Tester (CCT) is the senior level requiring substantially more experience and a harder examination, separated into Infrastructure and Applications specialisms. CCT testers lead the most complex engagements.

Methodologically, both should look similar. The differences are: tester certification (CREST member companies must use CREST-certified testers), audited quality framework (CREST audits members), ethical conduct framework (formal CREST code), and report quality expectations (CREST-format reports are recognisable to enterprise security teams). For regulated buyers, CREST removes the need to assess these things yourself.

Scope drives cost: a focused web application test starts in the low thousands of dollars, multi-asset programmes scale from there. Quotes are fixed before work starts, retesting of remediated findings is included, and remote-first delivery means no travel premium.

US frameworks rarely name CREST, but SOC 2 auditors, enterprise security teams, insurers and NYDFS examiners all recognise it as independent evidence of tester competence. It answers the vendor-review question, who tested this and what qualifies them, before it gets asked. Findings map to the frameworks your stakeholders actually use: SOC 2, HIPAA, PCI DSS v4.0.1 and NIST.
What you receive

Every engagement includes

  • ✓ Scoping call. A 30-minute call to define scope, timeline, and authorisation boundaries.
  • ✓ Test plan. Written test plan covering targets, methodology, and rules of engagement.
  • ✓ Technical report. Detailed findings with reproduction steps, evidence, and remediation guidance.
  • ✓ Executive summary. Board-ready 1-2 page summary with risk ratings and business impact.
  • ✓ Audit-ready evidence. Findings letter formatted for auditors, customers, and supervisory authorities.
  • ✓ Retest letter. Free retest of remediated findings within an agreed window. Confirmation letter included.
  • ✓ Remediation call. A call with our lead tester to walk through findings and remediation strategy.
How we deliver

Our process, end to end

  1. 1
    Scoping call & fixed-scope quote
    A 30-minute call. We define scope, targets, timeline. You get a fixed-scope quote within one working day. No surprise invoices.
  2. 2
    Test plan & authorisation
    Written test plan covering methodology, targets, and rules of engagement. Authorisation letter signed before any testing begins.
  3. 3
    CREST-accredited execution
    Senior tester runs the engagement. Critical findings flagged immediately during testing. Daily updates if you want them.
  4. 4
    Technical + executive report
    Detailed technical findings with reproduction steps. Board-ready executive summary. Delivered within agreed working days.
  5. 5
    Remediation call & retest
    Walkthrough with our lead tester. Retest of remediated findings within the agreed window. Confirmation letter for your auditors.
Engagement scope

What shapes the quote

Small scope
Single app, focused scope, smaller surface. 5-7 working days.
Medium scope
Multi-role platform, several user types, integrations. 8-12 working days.
Enterprise scope
Complex environment, multiple targets, compliance evidence. 12-25 working days.
Fixed-scope quote within 1 working day
No surprise invoices, no scope-creep. We commit to a number before you commit to us.
Sample report
See exactly what we deliver
Download a redacted RedSecLabs penetration test report. Same format, same depth, same clarity as the report your team will receive.
Download sample report
Why RedSecLabs

Grounded reasons clients choose us

⚑
UK-based team
Testers based in the UK. Data stays within UK/EU jurisdiction for sensitive engagements.
❄
CREST member company
CREST-accredited methodology. Senior testers hold CREST CRT or CCT certifications.
⚙
Manual testing, not scanner-only
Automated scanners catch the obvious. Our human testers find the issues that matter.
✎
Clear executive reporting
Reports your board can read and your developers can act on. No jargon padding.
♚
Compliance-aware delivery
PCI, SOC 2, ISO 27001, DORA, GDPR. We map findings to your compliance framework.
↺
Retest support included
Free retest of remediated findings within agreed window. Confirmation letter for auditors.
Related services

Often paired with this engagement

Web App Pentesting →
CREST methodology applied to applications.
Network Pentesting →
CREST methodology for infrastructure.
Red Team Assessment →
CREST-accredited adversary simulation.
DORA TLPT →
For DORA-regulated financial entities.
SWIFT CSP →
For SWIFT-connected financial institutions.
📞 Call us Book a call