Cybersecurity Services in Denver
NetSys provides cybersecurity services to businesses in Denver: 24/7 managed detection and response on every device, identity and email protection across Microsoft 365, vulnerability scanning, staff training and immutable backups, with an engineer acting on alerts rather than forwarding them.
The short answer
NetSys provides cybersecurity to businesses in Denver: ThreatDown managed detection and response on every device, multifactor authentication and Conditional Access across Microsoft 365, Barracuda email protection, Rapid7 vulnerability scanning, security awareness training and immutable backups with tested restores. Delivery is remote-first from Brooklyn, with the help desk staffed seven days a week from 4 a.m. to 11 p.m. Eastern time (2 a.m. to 9 p.m. Mountain) and emergency service 24/7. On-site commitments are arranged in advance and sized to the engagement, including a nearby dedicated engineer where regular presence and availability have been confirmed. Ongoing agreements run month to month.
Service information by The NetSys Group. Our editorial standards.
How cybersecurity is delivered in Denver
Denver is served from Brooklyn, two hours behind us on Mountain time. 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 (2 a.m. to 9 p.m. Mountain), seven days a week. The proposal states severe-incident escalation, authorized remediation and any other after-hours work. On-site commitments outside our on-site coverage (New York City, Long Island, Westchester, the Hudson Valley, North Jersey and Fairfield County, CT) are arranged in advance and sized to the engagement: a mostly remote engagement needs no dedicated on-site engineer, while an engagement that calls for regular presence, such as vCISO work with someone on site two days a week, can include a dedicated engineer with a drive time generally under an hour once availability, location and the visit schedule are confirmed in the proposal. Hardware can ship pre-configured where the project permits remote setup. Confirm landlord access, circuit diversity, cabling and equipment space before approving a network change. Carrier options to check in Denver include Comcast Business, Lumen and CenturyLink Fiber; availability, routing and installation dates must be verified at your address before a failover design is approved.
Who cybersecurity in Denver is built for
Businesses we can support in and around Downtown Denver, LoDo, the Denver Tech Center, Boulder and Broomfield include technology and professional firms on Rippling, medical practices on eClinicalWorks, aerospace and defense suppliers on Deltek Costpoint, law firms on Clio, contractors on Procore, and real estate firms on AppFolio. These are examples of business and application needs, not a list of local clients. We coordinate infrastructure, identity and integration with the application vendor, and identify any compliance requirements during discovery. Companies with an internal IT person can agree a split of responsibilities, systems and coverage hours before work begins.
Continuity planning for your Denver business
Start with the systems your team cannot work without. Record the impact of a building power outage, a failed internet circuit, a compromised account and an unavailable application vendor. Then agree recovery priorities, an independent access path, protected backup copies and a test for each critical workflow. Controls reduce particular risks; they do not guarantee that an incident cannot happen.
Cybersecurity in Denver: 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
- Written incident response plan with named owners, tested once a year on a tabletop exercise
- Post-incident reports written for your insurer and your counsel, not just your IT team
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
- Barracuda Email Protection with impersonation protection, plus DMARC enforcement for the domain
- KnowBe4 training on a recurring schedule, with a wire-transfer and vendor-change verification procedure written for finance
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
- Immutable, off-site backups with restores run on a schedule and the result written down
- Free remote external penetration test before you hire us; Tier 2 source-code testing quoted per codebase
A 75-person law firm in Downtown Denver
This planning example shows how we could scope the work. It is not a claim about a customer in this market or a measured result. For published customer work, see our case studies.
A 75-seat law firm in Downtown Denver that handles regulated data in Clio across the office and remote staff on home Wi-Fi. A former employee's account was still active six months after they left. Email protection is whatever Microsoft ships by default, DMARC was never set up, the Comcast Business firewall is a consumer router, and the last security training anyone remembers was a poster.
- Standing administrator rights converted to just-in-time roles through Entra ID Privileged Identity Management, with break-glass accounts kept outside it
- Datto SIRIS backups with immutable cloud copies for the servers and a Microsoft 365 backup for the tenant, with a restore tested and the result written down for the insurer
- A written incident response plan with named owners, the insurer's hotline and counsel's contact, tested on a tabletop exercise
- Vendor questionnaire answered from the documented controls, with the evidence attached rather than promised
- Keeper password management deployed and shared credentials rotated, starting with the ones in the spreadsheet
- Microsoft 365 investigation: sign-in logs, forwarding rules and consent grants reviewed to establish whether a mailbox was compromised, then multifactor authentication and Entra ID Conditional Access enforced for every account
The insurer's questions get answered with evidence instead of assurances, wire instructions have a verification step that does not depend on memory, and an engineer is watching the tenant at night. The business gets one person to call. The agreement stays month to month.
Law office: layered security on Microsoft 365 with cloud-to-cloud backup
A 25-attorney firm needed client confidences protected better than a closet server could manage. Alongside a Microsoft 365 migration, NetSys layered anti-phishing and email threat protection, DNS filtering, multifactor authentication on every account and endpoint protection across attorney devices in the office and remote, and established independent cloud-to-cloud backup of the entire tenant because the recycle bin is not a backup strategy for privileged material. The firm reported 82% fewer IT support incidents per month within two quarters.
Cybersecurity work for other clients
- Healthcare
Home healthcare agency
Mobile device protection for 73 phones and tablets, secure email access, and remote removal of company data from lost devices.
- Construction and trades
Commercial electrical contractor
MFA rollout for 50 employees, secure mobile access to project files, and Microsoft 365 account management.
- Healthcare
Outpatient mental health practice
Support for 32 clinician workstations, secure telehealth access, patient record backups, and phishing protection.
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Denver client.
Compliance in Denver: Colorado’s data-protection statutes and what sits on top of it
Colorado’s data-protection statutes, including C.R.S. § 6-1-716 require covered entities to maintain reasonable security procedures and address qualifying breaches. Required notice includes the Attorney General when 500 or more Colorado residents are affected. The state’s guidance distinguishes security, disposal and notification duties. The service scope should identify the records, access controls, retention settings and incident evidence your business needs; your legal or compliance adviser determines which requirements apply. The security service is built to produce the evidence those rules ask for: multifactor authentication and Conditional Access reports, endpoint detection coverage, vulnerability scan results, backup restore records and a tested incident response plan. Discovery identifies missing records and assigns the documentation work. Applicable duties depend on the business, data, exemptions and contracts; your legal or compliance adviser determines which requirements apply.
Primary sources
What cybersecurity costs in Denver
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.
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.
Not a fit: organizations that want a security product installed and left alone. The service is monitored, reviewed and reported monthly, and it changes the way administrators, finance staff and vendors work. If that is not wanted, a tool purchase serves better than an engagement.
Read next
Industry pages: IT for Professional Services & Consulting · IT for Healthcare
Terms used on this page: Managed Detection and Response (MDR) · Endpoint Detection and Response (EDR) · Conditional Access
Guides: MDR versus antivirus for a small business · the Conditional Access policies to turn on first
Related pages
Read the full Cyber Security service page. See all locations and service areas.
Also in Denver: Managed IT Services · IT Consulting · IT Support
Cybersecurity elsewhere: New York City · Brooklyn, NY · Nassau County, NY · Suffolk County, NY · Westchester County, NY · Stamford, CT
Related services: Penetration Testing · Cyber Insurance Readiness · Security Assessments · Managed Detection & Response (MDR)
Cybersecurity in Denver: FAQs
Do we need a security assessment before signing up?
The free external test is where most engagements start. A fuller assessment of the tenant, devices, network and backups is scoped separately and produces a prioritized fix list that becomes the first ninety days of the service.
What does the free external penetration test include?
The free offer is a remote external penetration test, limited to the information available to NetSys and the external scope agreed with you. It examines what your business shows the internet and reports the findings with their scope and limitations stated. Reviews of tenant settings, devices, internal networks or backups need a separate scope.
Will cybersecurity services help us pass a cyber insurance questionnaire?
Yes. Multifactor authentication, endpoint detection and response, tested offline backups and security awareness training are the four controls almost every questionnaire asks about, and the service produces the evidence for each. Our cyber insurance readiness page lists what carriers are asking for in 2026.
Do you have an office in Denver?
Our office is in Brooklyn, NY. Denver is served from Brooklyn, two hours behind us on Mountain time. Outside our on-site coverage the on-site arrangement is agreed before the engagement starts and sized to what it needs: none for a mostly remote account, or a dedicated engineer where regular presence such as vCISO work with someone on site two days a week is part of the scope. A drive time generally under an hour is an option subject to confirming engineer availability and your address. The help desk is staffed seven days a week from 4 a.m. to 11 p.m. Eastern time (2 a.m. to 9 p.m. Mountain), with emergency service 24/7. The proposal states the on-site arrangement and any travel in writing, and the agreement runs month to month.
How can IT support help with Colorado data-security requirements?
Colorado’s data-protection statutes, including C.R.S. § 6-1-716 require covered entities to maintain reasonable security procedures and address qualifying breaches. Required notice includes the Attorney General when 500 or more Colorado residents are affected. The state’s guidance distinguishes security, disposal and notification duties. NetSys can help document the relevant systems, controls and incident evidence within an agreed scope; legal notification decisions remain with your authorized business and legal team.
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.