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StrikeCyberStrikeCyber
Long Island, NY

Penetration Testing Long Island

Offensive security for Nassau and Suffolk: the health systems, the aerospace and defense manufacturing cluster, the research labs, and more school districts than any comparable area in the country.

Penetration Testing for Long Island Organizations

Long Island is not a suburb of New York City in any sense that matters to a security assessment. Nassau and Suffolk together hold close to three million people, the largest health system in New York State, a dense aerospace and defense manufacturing base, two national-scale research laboratories, and well over a hundred independent school districts. The attack surface is genuinely regional, and very little of it is managed from Manhattan.

Healthcare is the largest concentration. The integrated systems here run hospitals, ambulatory networks, physician practices and research arms under one corporate environment, much of it assembled through acquisition. When we test those organizations the useful finding is rarely a vulnerable clinical application. It is that the separation between an acquired practice network and the core, or between the research environment and the clinical one, is thinner than the governance documents imply. Add a connected device estate that cannot be patched on a normal cycle, and the valuable work becomes containment: what would an ordinary phishing compromise actually reach.

Aerospace, defense and precision manufacturing is the second, and it is the legacy of the Island's aviation history rather than a recent arrival. The Hauppauge industrial park is among the largest in the country, and the Route 110 corridor and Farmingdale hold a long tail of subcontractors machining and assembling to federal specification. These are small and mid-sized businesses holding controlled unclassified information on networks that grew organically. The boundary asserted in a System Security Plan frequently does not match the network that exists, and the engineering share is usually sitting one credential away from the commercial side of the business.

Research is the third. The laboratories and genomics institutes here hold data and intellectual property of real national value, generally behind ordinary research credentials on networks deliberately built to be open to collaborators. Scoping that work honestly means accepting that openness is a requirement, not a finding, and testing what sits behind it instead.

Public sector and education are the fourth, and the most distinctive thing about Long Island from a security perspective. The two counties, their towns and villages, and more than a hundred separate school districts each run their own IT, each hold substantial personal information, and most operate with a small team and a constrained budget. A county government ransomware incident in 2022 took systems offline for months and is still the reference point for every municipal conversation we have here. The lesson that stuck was not that a perimeter failed; it was how far an intruder traveled once inside, and how little was in the way.

Financial services, wealth management, utilities and a substantial professional services sector round out an economy that is far more self-contained than its proximity to the city suggests.

What We Test

Long Island engagements are scoped to the environment rather than sold as a bundle. Common components include external attack surface, internal network and Active Directory, web applications and APIs, cloud environments, wireless, and social engineering.

The internal assessment is usually the highest-value component. An operator connects to your network on site, or works from a device you ship to us, and replicates what a compromised workstation or a malicious insider could achieve: privilege escalation, lateral movement, Kerberos abuse, credential harvesting, and the path from a standard user account to domain administrator. In health systems we test the separation between clinical, research and corporate functions explicitly. In districts we test what a compromised staff account reaches, and whether student information systems are genuinely segmented from general administration.

For clinical estates we assess device and system segmentation rather than testing connected devices intrusively. For manufacturers we assess the boundary between business IT and the shop floor, covering vendor remote access, jump hosts and engineering workstations, with active testing confined to environments you have agreed.

Cloud work covers AWS, Azure and Google Cloud identity and access management, privilege escalation paths, exposed storage and secrets handling, including hybrid identity between Active Directory and Entra ID. Application testing follows the OWASP Web Security Testing Guide and the OWASP API Security Top 10.

Long Island Compliance and Regulatory Drivers

The New York SHIELD Act requires reasonable administrative, technical and physical safeguards from any business holding the private information of New York residents. It is deliberately not prescriptive, which means the practical question in an incident is whether you can evidence that your safeguards were reasonable. Testing is how that evidence gets created.

NYDFS Part 500 applies to banks, insurers, licensed lenders and other covered entities, with annual penetration testing, bi-annual vulnerability assessments and senior certification obligations that are explicit rather than implied.

HIPAA governs health systems, physician groups and affiliated practices, with risk analysis expectations that are difficult to satisfy credibly without testing.

New York Education Law 2-d and its Part 121 regulations require school districts to adopt the NIST Cybersecurity Framework and to bind third-party contractors to data privacy terms. Districts are among the few organizations in the United States with a named framework obligation written into state education law.

CMMC and NIST SP 800-171 flow down through DFARS clauses to the defense supply chain. FERPA covers education records, PCI DSS applies to card handling, and breach notification runs under the SHIELD Act's amended provisions.

How an Engagement Runs

Scoping starts with a short call to establish what you are protecting, what worries you and what evidence you need at the end. Targets, timing, rules of engagement and success criteria are agreed in writing before testing begins, and for clinical, operational and school environments we agree explicitly what is out of bounds.

Certified human operators run the work, using AI-augmented tooling for reconnaissance and coverage. Critical findings are reported the day we confirm them rather than held for the report. The report carries an executive narrative and reproducible technical detail with evidence, demonstrated impact and a prioritized remediation path, and a retest of remediated items is available.

Why Long Island Organizations Choose StrikeCyber

Because every finding is confirmed by a person, and because we scope clinical, operational and education environments conservatively. A test that disrupts patient care or a state assessment window has failed regardless of what it found.

AI-augmented reconnaissance and continuous attack surface validation widen coverage well beyond manual enumeration, which matters on Long Island specifically, where organizations grown through acquisition routinely own internet-facing assets nobody remembers standing up. A certified operator then validates, exploits where safe, and writes it up with the evidence attached. Scope and price are fixed before testing starts.

Long Island organizations frequently combine a penetration test with red teaming for full-spectrum adversary emulation, vulnerability assessments for continuous visibility between tests, maturity level assessments for benchmarking against NIST CSF, ISO 27001 or CIS, and adversary simulation to test detection and response.

You can also explore internal network, external network, cloud and Active Directory testing, see New York City, or the wider New York coverage.

FAQ

Penetration testing in Long Island: your questions

How much does a penetration test cost on Long Island?

Most Long Island engagements run from the low thousands for a focused single web application test to the mid five figures for a broad internal, external and cloud assessment across a large organization. Price is driven by the number of hosts, applications, user roles and API endpoints in scope, not by headcount. We quote fixed scope and fixed price after a short scoping call.

Do you work with school districts?

Yes, and it is a significant part of our New York work. Education Law 2-d and Part 121 require districts to adopt the NIST Cybersecurity Framework and to hold third-party contractors to data privacy terms, which makes independent testing the practical way to evidence the safeguards a district has claimed. We scope around the school calendar and keep active testing away from state assessment windows.

Can you test a health system without disrupting patient care?

Yes, and the scoping is where that is decided rather than the testing. Connected clinical devices are assessed for segmentation and reachability rather than tested intrusively, change freezes are respected, and anything that could affect a clinical workflow is agreed as out of bounds in writing before we begin. A test that disrupts care has failed regardless of what it found.

We are a defense subcontractor. Can you help with CMMC?

Yes. A penetration test is not a CMMC assessment, but it is the fastest way to find out whether the boundary described in your System Security Plan matches the network you actually run. On Long Island that gap is common, because a precision manufacturer's controlled unclassified information often sits on the same identity plane as the shop floor and the commercial side of the business.

Do you test on site, or is it all remote?

Both, depending on the component. External, application and cloud work is remote. Internal network, wireless and physical testing is on site across Nassau and Suffolk, and social engineering is run against the locations we agree. For internal work you can also ship us a device rather than host an operator, which some organizations prefer.

How often should we test?

Annually as a baseline, and after any significant change to your environment: a migration, an acquisition, a new application or a material change to identity. Organizations under NYDFS Part 500 should align testing to their annual cycle, and districts should plan around the school year. Continuous attack surface monitoring between tests covers the exposure that appears in the gaps.

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