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. Denver is served from Brooklyn, two hours behind us on Mountain time. Monitoring, help desk and remediation run remotely around the clock from Brooklyn, with coverage hours stated in Mountain time in the proposal. On-site commitments are arranged in advance and sized to the engagement. Most clients run between 10 and 75 seats, and every agreement is month to month.
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 coverage hours stated in Mountain time, and on-site commitments are arranged in advance and sized to the engagement, up to a dedicated engineer with a drive time generally under an hour where regular presence is part of the scope. Most clients run between 10 and 75 seats, and every agreement is month to month.
How cybersecurity is delivered in Denver
Denver is served from Brooklyn, two hours behind us on Mountain time. Monitoring, help desk and remediation run remotely around the clock from Brooklyn, with coverage hours stated in Mountain time in the proposal. On-site commitments outside the tri-state area 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, gets a dedicated engineer whose drive time is generally under an hour, depending on where that engineer and your office are. Hardware ships pre-configured, so most projects need no visit at all. The buildings decide a lot of the design. Downtown and the Tech Center have carrier choice, but Boulder and Broomfield offices often run on one Comcast circuit, and aerospace suppliers along the Front Range need CUI segmented, so the compliance boundary shapes the network. The carriers we see most in Denver are Comcast Business, Lumen and CenturyLink Fiber, and the failover design starts with which of them actually reach your building.
Who cybersecurity in Denver is built for
Most of our Denver work sits in Downtown Denver, LoDo, the Denver Tech Center, Boulder and Broomfield: 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. Each carries its own compliance load, which the section below covers, and each has a line-of-business vendor we coordinate with rather than work around. Companies with an internal IT person fit too; in that case we supply the monitoring, the security stack and the after-hours coverage behind them, and they keep their projects.
What tends to go wrong in Denver
Two things shape the continuity design here. First, the weather and the grid: winter storms and wildfire smoke are the recurring risk, so UPS runtime, cellular failover and off-site backups are standard. Second, the attacks that actually land locally are ordinary ones, and the public record shows how they go: the 2023 MOVEit breach that reached Colorado's Department of Health Care Policy and Financing through a contractor, exposing the data of some four million Coloradans and showing how vendor software becomes the point of entry. The controls in the next section are the ones that would have changed those stories.
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
The specific engagements behind this profile are under NDA, so it is written as a generalization rather than a named client. Our published, client-approved outcomes are in case studies.
A 75-seat law firms 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.
Compliance in Denver: the CPA and what sits on top of it
If you hold personal information on a resident of Colorado, the Colorado Privacy Act (C.R.S. § 6-1-1301 et seq.) in force since July 1, 2023, requires larger data controllers to keep reasonable security and honor consumer rights, while C.R.S. § 6-1-716 requires every business to notify affected residents within 30 days of determining a breach occurred, with the Attorney General told when 500 or more residents are affected. Aerospace and defense suppliers along the Front Range face CMMC 2.0, healthcare adds HIPAA, and cannabis and financial businesses carry their own regulator expectations. 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. Most firms we take over have none of it documented, which is the part that matters if you ever have to demonstrate compliance, so the documentation is built during onboarding rather than sold as a separate project.
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, whether 24/7 response is needed beyond monitoring, 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 the tri-state area the on-site arrangement is agreed before the engagement starts and sized to what it needs: none for a mostly remote account, and a dedicated engineer, generally within an hour's drive, where regular presence such as vCISO work with someone on site two days a week is part of the scope. The proposal states that arrangement, coverage hours in Mountain time and any travel in writing, and the agreement runs month to month.
What does Colorado require after a data breach?
C.R.S. § 6-1-716 gives a business 30 days from determining a breach occurred to notify affected residents, and 500 or more affected residents means the Attorney General must be told. The Colorado Privacy Act's consumer-rights duties apply above data thresholds that most small businesses do not reach.
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.