Cybersecurity — New York / Tri-State
Managed cybersecurity services (MSSP) in New York
Detection, response, and the controls your regulator and insurer actually ask about — run by the same team that manages your IT, so findings turn into fixes instead of emails between vendors.
01 — The security practice
Seven disciplines, one practice
Each service below stands on its own. They are built to run together: the detection that fires, the log that proves it, the patch that closes it, and the report that documents it come from one team.
MDR
Managed Detection & Response
EDR/XDR telemetry from every endpoint, watched around the clock by our tooling and triaged by engineers — with containment authority agreed in writing.
SecOps
Security Operations (SOC)
A SIEM-lite pipeline that joins identity, endpoint, email, and network logs, with alerts engineered to be worth waking someone for.
VM
Vulnerability Management
Scanning on a cadence that holds, prioritization by exploitability, a clean handoff to patching, and reports written for insurers and auditors.
Email Security
Phishing and BEC defense: Microsoft 365 mail hardening, tuned filtering, and DMARC, DKIM, and SPF taken to enforcement.
Identity
Identity Security & MFA
Entra ID hardening, MFA and conditional access, privileged-account separation — the perimeter most attacks actually cross.
Awareness
Security Awareness & Phishing
Short recurring training and honest phishing simulation, measured by how fast people report — not by who we tricked.
IR
Incident Response
Playbooks written before you need them, engineer-led containment during an incident, and coordination with your insurer and counsel throughout.
Why security and IT belong to one team
The standard arrangement — an IT provider here, a security vendor there — fails at the seam. The security vendor raises a finding; the IT provider disputes it, deprioritizes it, or never hears about it. Months later the finding reappears, this time in an incident report.
Stedholm runs managed IT and managed security as one discipline. The engineer who hardens your Microsoft 365 tenant reads the same alert queue as the engineer who closes your help desk tickets. Detections become patches, policy changes, and offboarding fixes without a vendor-to-vendor handoff.
If you have internal IT or another provider, the security practice runs co-managed: findings feed the change process you already have, in writing, with the evidence attached.
Your insurance renewal is now a security audit
Cyber-insurance applications stopped taking your word for it. Carriers ask for MFA on email and remote access, EDR on endpoints, tested backups, and security awareness training — and the answers you give become warranties when there is a claim. A checked box you cannot evidence is worse than an honest no.
We build the controls so the honest answer is yes: MDR for the EDR question, MFA and conditional access for the identity questions, training records for the awareness question, and restore tests for the backup question. At renewal you hand your broker evidence instead of assurances.
The same evidence serves double duty for NYDFS Part 500, HIPAA, the FTC Safeguards Rule, and the client security questionnaires that increasingly decide who wins the work.
02 — Where it is needed most
Built for firms that answer to someone
Financial services
NYDFS Part 500 makes monitoring, MFA, and incident notification regulatory obligations. We operate them as a practice, not a binder.
Law firms
Client OCGs and outside-counsel questionnaires now decide who gets the work. We run the controls the questionnaires ask about.
Healthcare practices
HIPAA’s Security Rule expects risk analysis, access control, and audit trails — operated continuously, not assembled before an audit.
Accounting & CPA firms
The FTC Safeguards Rule applies at any firm size, and several of its nine elements are security operations by another name.
Defense suppliers
CMMC assessments now sit inside DoD contracts. Most of NIST 800-171 is the discipline described on this page.
All industries
Wire fraud, ransomware, and client security demands do not check your SIC code. Tri-State coverage across sectors.
Common questions
What is the difference between an MSP and an MSSP?
An MSP runs your IT operations — help desk, endpoints, servers, cloud. An MSSP runs your security operations — detection, response, vulnerability management, security monitoring. Most firms our clients’ size need both, and the industry’s habit of splitting them across two vendors who have never met is where things fall through. Stedholm is structured as both on purpose.
We already have an IT provider. Can we use Stedholm for security only?
Yes. The security practice runs standalone or co-managed: we monitor, detect, and investigate, and our findings feed your provider’s or your team’s change process as written, prioritized tickets. We will be candid that the seam between vendors is where risk lives, and we work to keep it narrow.
Do you run a staffed 24×7 SOC?
No, and we will not pretend to. Our monitoring and detection tooling watches your environment around the clock and pages an engineer when something needs a human. The security operations page describes the staffing model in plain terms — we would rather publish an honest model than borrow someone else’s SOC photo.
What does managed cybersecurity cost?
It depends on scope: endpoint count, log sources and retention, compliance regime, and whether we also run your IT. We quote flat monthly pricing with the scope in writing before you sign. The expensive version of security is the one most firms already have — licensed tools that nobody watches.
Will this satisfy NYDFS, HIPAA, or the FTC Safeguards Rule?
We build and operate controls mapped to NYDFS 23 NYCRR 500, HIPAA, the FTC Safeguards Rule, CMMC, and SOC 2 expectations, and we produce the evidence those regimes ask for. Certification and legal interpretation remain with you and your counsel — we are not a law firm or an auditor, and we say so.
Put a security practice on the ground.
Thirty minutes with an engineer about your environment, your obligations, and what is currently unwatched.