Cybersecurity · Detroit

Cybersecurity Services in Detroit, MI

Since 2022, attackers have taken Wayne County's online services offline, disrupted Stellantis assembly plants through a supplier based in Novi, and pushed a Michigan hospital network onto downtime procedures. NetSys protects Detroit businesses against the same methods with managed detection and response, hardened sign-in, filtered email and immutable backups, all delivered remotely from Brooklyn.

All IT services in Detroit, MI

The short answer

NetSys gives Detroit organizations layered cybersecurity services: on each endpoint, ThreatDown managed detection and response alongside Microsoft Defender for Business; at sign-in, Entra ID Conditional Access and number-matching multifactor prompts; in the inbox, Barracuda filtering backed by KnowBe4 phishing exercises; across the network, Rapid7 InsightVM scans; and underneath it all, Keeper password vaults and immutable Datto or Veeam backups. Monitoring never stops. The work is remote, and NetSys does not send engineers on site in Michigan. We also produce the evidence that OEM customers, cyber insurers and auditors ask Detroit companies for. Security runs on a per-user monthly fee set after an assessment; the only thing we give away is a remote external penetration test.

Service information by The NetSys Group. Our editorial standards.

How cybersecurity is delivered for Detroit organizations

Every control on this page is software, so the distance between Brooklyn and Detroit makes no practical difference. The ThreatDown agent on each computer streams its behavior to analysts who can isolate a laptop in Dearborn or a server in Southfield as soon as a threat is confirmed. Conditional Access policies, Defender alerts and Barracuda quarantines are administered in your Microsoft 365 tenant, and firewall logs feed the same review. NetSys does not send responders to Detroit. If a device must be unplugged or powered off during an incident, an engineer talks a named person on your staff through it by phone, and we coordinate with your insurer's breach coach and outside counsel from the first hour. Each month you receive a written report covering multifactor coverage, detections, patch status, open vulnerabilities and backup results. Monitoring runs 24/7 from Brooklyn, and so does emergency service. Our staffed help-desk hours are 4 a.m. to 11 p.m. Eastern time, seven days a week. The proposal states severe-incident escalation, authorized remediation and any other after-hours work.

MFA fatigue and the Michigan Medicine phishing case

Multifactor sign-in only protects you if people refuse prompts they did not start. In August 2022, attackers sent Michigan Medicine employees to a fake login page; four of them entered their credentials and then accepted the multifactor prompts that followed, which opened their mailboxes and exposed information on about 33,850 patients. The same trick works on a Troy engineering firm or a Southfield law office. We close it with settings rather than hope. Microsoft Authenticator requires number matching, so a user must type the code shown on the sign-in screen; Conditional Access blocks sign-ins from unmanaged devices and unexpected countries; administrators move to phishing-resistant methods such as passkeys; and repeated denied prompts raise an alert. KnowBe4 simulations then train staff to report an unexpected prompt as an attack in progress.

Supplier ransomware and the Yanfeng shutdown

Detroit's supply chain shows how one company's breach becomes another company's outage. In November 2023 a cyberattack on Yanfeng, the interiors supplier whose North American base is in Novi, disrupted several Stellantis assembly plants in North America during the week of November 13, and Stellantis reported full production restored by November 16. The Qilin ransomware group later claimed the attack and posted samples it described as quotation files, nondisclosure agreements and technical data sheets. For a Tier 1 or Tier 2 supplier the lesson is practical. Office and plant networks are segmented so ransomware on one laptop cannot reach the machines that schedule and ship parts, ThreatDown watches every endpoint, backups are immutable and stored away from the main network, and a written incident plan lists the customer contacts who must hear from you before rumors reach them.

Attacks on Detroit-area government and hospitals

Public incidents show what attackers do once they are inside. Wayne County, home to more than 1.75 million residents, was hit by ransomware that began October 2, 2024: its websites went down, online property tax payments stopped, inmate processing slowed and the Register of Deeds closed early while the FBI and Michigan State Police investigated. McLaren Health Care, whose network includes Detroit's Karmanos Cancer Institute, discovered intruders on August 5, 2024 who had first gained access on July 17, and it later notified 743,131 people. A year earlier, the University of Michigan cut its campus network off from the internet after unauthorized access that affected about 230,000 people. The common thread is time: an attacker nobody sees can widen access for weeks. For a private business that means watching sign-ins and endpoints continuously and confirming every payment or bank change by phone.

Security evidence OEMs, insurers and auditors ask Detroit companies for

A Detroit supplier rarely sets its own security bar. OEM and Tier 1 customers send security questionnaires with sourcing packages; suppliers in German automakers' supply chains can be asked for a TISAX label, which rests on the Information Security Assessment catalog that the VDA publishes and the ENX Association maintains; and defense work tied to TACOM in Warren brings DFARS 252.204-7012 and NIST SP 800-171. Cyber insurers want proof of multifactor sign-in, endpoint detection and tested backups before they renew. We build the controls so the evidence comes out of them: Conditional Access reports, ThreatDown coverage, Rapid7 scan results, restore logs and a tested incident response plan. The July 13, 2026 suspension of CMMC Phase 2 left self-assessments and the SPRS score in force, so we keep both current.

What is included

Cybersecurity in Detroit: what NetSys delivers

Watch and respond

ThreatDown MDR and EDR on every device, with a 24/7 team that isolates and investigates rather than emails
Rapid7 InsightIDR or Microsoft Sentinel collecting identity, email, endpoint and firewall logs so an intrusion is visible in one place

Harden the tenant and the people

Microsoft Defender for Business, Entra ID Conditional Access and phishing-resistant sign-in for finance staff
Legacy authentication off, dormant accounts closed, forwarding rules and consent grants reviewed monthly

Measure and recover

Rapid7 InsightVM scans of the internal and external footprint, with a monthly fix list
Managed firewall with intrusion prevention, segmentation and vendor access that is logged and switched off when the work ends

Published case study

Firewall, antivirus and maintenance for a five-person office

A five-person office needed the basics done properly rather than an enterprise stack. NetSys replaced the internet provider's router with a business-grade firewall configured with sensible rules, secure remote access and logging, deployed managed antivirus on every machine with updates and alerts handled centrally, and put patching, backup checks and health reviews on a schedule. The agreement covers what the office needs and nothing it does not, month to month. No outcome figures were measured for publication.

Read the full case study (5-person office)

From our client work

Cybersecurity work for other clients

Insurance
Regional title insurance company
Barracuda email protection for 85 users, phishing simulations, employee security training, and MFA deployment.
Security Awareness & Phishing Training IT for Insurance Agencies and Brokers

Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Detroit client.

What cybersecurity costs in Detroit

Cybersecurity is priced per user per month when it runs as an ongoing service, and per project for an assessment or a remediation. What moves the number: how many devices and identities are in scope, how much incident remediation and recovery is needed beyond the monitoring and authorized MDR actions in scope, which compliance standard the evidence has to satisfy, and whether the Microsoft 365 tenant is already on Business Premium or the security tooling comes from us. The free external penetration test costs nothing and runs remotely before any of that. Our managed IT pricing page explains how the fee is built.

How the monthly fee is built

Who this fits, and who it does not

Best fit: businesses with enough people, money movement or regulated data that a breach would hurt, and no security team of their own: professional practices, healthcare groups, importers, financial firms, nonprofits and agencies holding client credentials. Companies with an internal IT person fit as a co-managed arrangement.

Cybersecurity in Detroit: FAQs

How does cybersecurity work for Detroit organizations?

It starts with an assessment of your Microsoft 365 tenant, endpoints, firewall, backups and accounts, which becomes a written list of gaps in priority order. We then deploy ThreatDown, tighten Conditional Access, switch on Barracuda filtering, enroll staff in KnowBe4 and schedule Rapid7 scans, all remotely, since NetSys does not send engineers to Michigan. After that the service runs continuously: alerts are worked 24/7, user questions are answered at the help desk between 4 a.m. and 11 p.m. Eastern, and a monthly report shows what was blocked, what is still open and whether the latest restore test passed.

How much do cybersecurity services cost in Detroit?

We quote rather than publish. The ongoing service carries a per-user monthly fee, while an assessment or a cleanup project gets a fixed quote once the scope is clear. The figure moves with the number of devices and accounts, whether your Microsoft 365 plan already includes Defender and Conditional Access, as Business Premium does, how much remediation the assessment uncovers, and which evidence your customers, insurer or auditors require, such as preparation for a TISAX assessment or a NIST SP 800-171 self-assessment. The remote external penetration test costs nothing and is a sensible first step before you commit to anything.

Which cybersecurity requirements apply to businesses in Detroit, MI?

Start with MCL 445.72, the Identity Theft Protection Act, which covers any business that owns or licenses Michigan residents' personal information. After a breach it must tell those residents without unreasonable delay unless it reasonably finds that substantial loss, injury or identity theft is unlikely; once more than 1,000 people are notified, the nationwide consumer reporting agencies must be told too; and each knowing failure to notify can draw a $250 civil fine, up to $750,000 for one breach. Medical practices add the HIPAA Security Rule, defense suppliers DFARS 252.204-7012 and NIST SP 800-171, and insurance licensees Michigan's Insurance Data Security Act. This is general information, not legal advice.

What does Michigan's Insurance Data Security Act require of agencies?

Since January 20, 2021, Michigan's insurance licensees have been bound by Chapter 5A of the Insurance Code (MCL 500.550 to 500.565). The core duty is a written information security program built on a risk assessment, with oversight of third-party service providers and an incident response plan. A licensee must notify the director no later than 10 business days after determining that a qualifying cybersecurity event occurred. Agencies with fewer than 25 employees, counting independent contractors, are exempt from the program section but not from that notice duty. We supply the controls, logs and documentation an agency's program relies on.

Can you help us answer an OEM or Tier 1 security questionnaire?

Yes, and the useful part is making the answers true rather than simply filling in the form. We read the questionnaire with you, mark what your current setup already supports, and fix the gaps that matter most, which are usually multifactor sign-in for every account, endpoint detection on every computer, separation between office and plant networks, tested backups and a written incident plan. Each answer is backed by evidence pulled from the systems themselves. For TISAX, we prepare the IT controls and documentation an accredited audit provider will examine; the assessment and label come from that provider through ENX, not from us.

What happens if ransomware hits our Detroit office?

ThreatDown isolates the affected computers, and your dedicated engineer takes the case at once, because ransomware skips the help desk queue. We find how the attacker got in, keep the logs your insurer and lawyer will ask for, and bring systems back from immutable backups in the priority order you set. Over the past three years NetSys has worked more than 30 ransomware cases; all of those clients recovered fully, and the ones that already had a disaster recovery plan were running again within 24 hours. The incident plan written during onboarding names who calls your customers, your insurer and law enforcement, so the first hour is not spent deciding.

Start with the free test

See what an attacker sees before they do.

The free assessment is a remote external penetration test, limited to the information available to NetSys and the external scope we agree with you. Internal reviews and ongoing security management are scoped separately.

Explore Cybersecurity Scope 845-203-3914