Network Security Brooklyn: Segmented Networks for Lofts, Shops and Warehouses
NetSys manages network security in Brooklyn, NY: firewalls, segmentation, secure Wi-Fi, remote access and internet failover. We plan from your site and application requirements, document the configuration and monitor the agreed environment around the clock.
The short answer
NetSys provides network security and monitoring to Brooklyn businesses from its Park Slope headquarters, the company's only office. The service covers a managed firewall with maintained rules and firmware, segmentation that keeps payment terminals, cameras, guests and production equipment away from the systems that run the business, secure Wi-Fi with per-user logins, VPN and zero-trust remote access, intrusion detection at the edge and between segments, 24/7 network monitoring with alerts an engineer investigates, and ISP failover for buildings where one circuit is all the landlord allows. Because the office is in the borough, surveys, installations and hardware swaps anywhere in Brooklyn are the shortest trips we make. Agreements run month to month, and the network layer is part of the managed stack rather than an add-on.
Service information by The NetSys Group. Our editorial standards.
Network security risk in Brooklyn
The borough's businesses are physical. Food producers and distributors run warehouse scanners and refrigeration controllers. Production studios move large files between edit bays and a NAS. Retail and restaurants take cards. Medical and dental suites connect imaging equipment and practice-management servers. Most of that hardware was added to whatever network existed, which leaves a card terminal, a camera system and the accounting workstation reachable from the same Wi-Fi a delivery driver was given the password to. Attackers use that: a compromised camera or an old vendor remote-access tool becomes the path to the server. PCI DSS expects payment systems isolated, HIPAA expects patient systems controlled, and the SHIELD Act covers everyone holding New Yorkers' private information. Older buildings add the practical problem of a single internet provider through a single conduit.
How NetSys delivers network security in Brooklyn
It starts with an engineer walking the space, from the network closet in a converted industrial building to the counter where the card terminal plugs in. From that survey we install a managed firewall, split the network into segments for payment, production, cameras, staff and guests, replace the shared Wi-Fi password with individual authentication, and set up remote access that verifies the device before letting anyone in. Then monitoring takes over: 24/7 telemetry from every managed device with intrusion detection watching the traffic between segments. Where the building only offers one carrier, we add a wireless failover path. The distance from Prospect Park to most of Brooklyn is short, so a return visit to swap a switch or add a segment does not wait for a scheduled trip. Everything runs month to month.
Who network security services in Brooklyn fit
Food and beverage producers, distributors and importers with a warehouse floor, production and design studios with heavy file traffic and freelancers on site, restaurants and retailers with card terminals, medical and dental practices with imaging and patient systems, and professional firms in loft offices that inherited a flat network from the previous tenant. A business with its own IT person fits as a co-managed arrangement where we own the firewall, the monitoring and the alerts. A business opening a second Brooklyn location should involve us before the build-out, so the two sites are connected and segmented by design instead of stitched together later.
Network Security & Monitoring in Brooklyn, NY: what NetSys delivers
Edge and firewall
- Managed firewall installed on-site, with rules reviewed and firmware patched on a schedule
- Intrusion detection and prevention on all traffic entering and leaving the building
- Vendor and remote-support tools removed from the edge and replaced with logged, time-limited access
- ISP failover through a second carrier or wireless backup, with the cutover tested
Segmentation for physical businesses
- Payment terminals isolated on their own segment to support PCI DSS scope reduction
- Cameras, door controllers and refrigeration or production equipment kept off the office network
- Warehouse scanners and edit-bay storage separated from finance and email
- Medical imaging and practice-management servers reachable only from clinical workstations
- Guest and delivery-driver Wi-Fi that reaches the internet and nothing else
Wi-Fi and remote access
- Secure Wi-Fi with per-user authentication across the whole space, including the warehouse floor
- VPN or zero-trust access for owners and staff working from home or a second site
- Multifactor authentication on every remote path into the network
- Encrypted site-to-site links between Brooklyn locations
Monitoring
- 24/7 monitoring of firewalls, switches and access points with alerting to an engineer
- Intrusion detection between segments so a compromised camera cannot quietly reach a server
- Circuit and failover health checks, so a dead backup path is found before it is needed
- As-built documentation and configuration backups for every managed device
A Brooklyn food producer with a warehouse, a storefront and one Wi-Fi password
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 family business with a production floor and cold storage in an industrial building, a retail counter at the front, and an office upstairs. Refrigeration controllers, the card terminal, a camera system, warehouse scanners and the owner's accounting computer all sit on one network protected by a consumer router. The Wi-Fi password is written on the wall by the loading dock. The only internet circuit has failed twice this year, stopping card sales each time.
- Site survey of the production floor, cold storage, storefront and office to map every connected device, including the ones nobody remembered were there
- Managed firewall installed with intrusion detection, and the consumer router retired
- Segments created for payment, refrigeration and cameras, warehouse scanners, office staff and guests, with the card terminal isolated to reduce PCI DSS scope
- Wi-Fi rebuilt with individual staff logins and a separate network for drivers and visitors, so the password on the wall stops mattering
- Wireless ISP failover added and tested, with 24/7 monitoring of the firewall, switches and access points and an alert to an engineer when a circuit or a controller drops
Card sales continue when the wired circuit fails, a compromised camera can no longer reach the accounting computer, and drivers still get their Wi-Fi without touching anything that matters. The engineer who built it works a short drive away, and the business pays month to month.
Multi-site medical practice: seven locations on an encrypted VPN mesh
A rapidly expanding medical practice had seven locations bolted together one network at a time, undersized servers on an end-of-life operating system and recovery objectives that existed on paper only. NetSys ran a gap analysis against the HIPAA Security Rule, refreshed the platform on Windows Server with Hyper-V, put business-grade firewalls at all seven sites joined in a site-to-site VPN mesh with per-role access controls, and added encrypted off-site backups with documented recovery objectives and scheduled restore tests. NetSys manages the servers and workstations on an ongoing basis.
Network security & monitoring work for other clients
- Retail
Seven-location clothing retail chain
Management of 56 computers, point-of-sale network support, endpoint protection, and standardized Wi-Fi and firewall configurations.
- Insurance
Insurance brokerage relocating its headquarters
Deployment of 40 workstations, installation of 60 network drops, firewall setup, and office Wi-Fi configuration.
Office Relocation IT ServicesIT for Insurance Agencies and Brokers
- Dental practices
Multi-location dental practice
Management of 48 computers across 6 offices, endpoint protection, network segmentation, and centralized backup monitoring.
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Brooklyn, NY client.
Compliance in Brooklyn: the SHIELD Act and what sits on top of it
The New York SHIELD Act (General Business Law § 899-bb) requires reasonable administrative, technical and physical safeguards for covered private information. The small-business standard considers the size and complexity of the business and the sensitivity of the information; it is not a general small-business exemption. 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. Network security answers the access-control and monitoring parts of those rules directly: who can reach which systems, what the firewall logged, and whether payment and patient systems are isolated from everything else. 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 network security costs in Brooklyn
Network security is priced as a monthly managed service per site, with hardware either included on the agreement or purchased outright. What moves the number: the number of sites and circuits, whether the site needs SD-WAN across several carriers, the count of switches and access points under management, and whether 24/7 monitoring is standalone or part of a wider managed agreement. Failover circuits are billed by the carrier at cost. We quote from a site survey, and terms run month to month. Our managed IT pricing page explains how monthly fees are built.
Who this fits, and who it does not
Best fit: businesses on one or two floors that inherited their network, practices that need patient or client systems isolated from waiting-room Wi-Fi, companies with an office and a warehouse or second site to connect, and any business with staff at home who need a safe way back into office systems.
Not a fit: single-person offices on a consumer router with nothing on the network but a laptop, or organizations that want equipment sold and installed without ongoing monitoring. The value is in the management and the monitoring, not the box.
Read next
Industry pages: IT for Legal · IT for Healthcare
Terms used on this page: Next-Generation Firewall (NGFW) · Network Segmentation · Zero Trust
Guides: SD-WAN across multiple locations · the business internet failover FAQ
Related pages
Read the full Network Security & Firewall Management service page. See everything NetSys delivers in Brooklyn, NY.
Also in Brooklyn, NY: Cybersecurity · Backup & Disaster Recovery · Managed IT plans and pricing · IT Consulting · IT Support
Industry pages for Brooklyn, NY: IT Support for Law Firms in Brooklyn · IT Support for Accounting Firms in Brooklyn · IT Support for Medical Practices in Brooklyn
Network Security & Monitoring elsewhere: New York City · Nassau County, NY · Suffolk County, NY · Westchester County, NY · Stamford, CT · Manhattan
Related services: Cyber Security · Managed IT Services · Security Assessments
Network Security & Monitoring in Brooklyn, NY: FAQs
Who provides network security and monitoring in Brooklyn?
The NetSys Group, headquartered at 1 Prospect Park SW in Park Slope, provides managed network security and 24/7 network monitoring across Brooklyn. The service includes a managed firewall, segmentation, secure Wi-Fi, VPN and zero-trust remote access, intrusion detection, ISP failover and round-the-clock monitoring with an engineer responding to alerts. Because the office is in the borough, surveys, installations and hardware swaps are the shortest on-site trips we make. Agreements are month to month.
Is there a network security company based in Brooklyn?
Yes. NetSys has been based in Brooklyn since 1998, and the Park Slope office is its only location. For network work that matters more than for any other service, because firewalls, switches, access points and cabling need a person in the building. The engineer who surveys your space and designs the segmentation is the same one who installs it and comes back when hardware needs attention, and there is no travel premium for the borough.
How do you secure a network with card terminals, cameras and warehouse equipment on it?
By separating them. Payment terminals go on their own isolated segment, which also reduces the PCI DSS scope of the rest of the network. Cameras, door controllers and production or refrigeration equipment get a segment that cannot initiate connections to the office. Warehouse scanners get their own. Intrusion detection watches the traffic between segments, and the firewall enforces the rules. A compromised camera then reaches the internet and nothing else.
Can you provide secure Wi-Fi for staff, guests and delivery drivers at the same time?
Yes. Staff authenticate individually, so a departing employee's access ends with their account rather than with a password change for everyone. Guests and drivers get a separate network that reaches the internet only. Freelancers or contractors who need something specific get a controlled path to that one system. The access points are managed and monitored, so a rogue device or a failing radio shows up on our side before it becomes a complaint.
Does a Brooklyn business need ISP failover?
If losing the internet stops you taking payments, seeing patients or shipping orders, yes. Many Brooklyn buildings deliver a single wired provider through one conduit, so a construction cut or an upstream failure takes the whole business down. A second carrier where the building allows it, or a wireless backup where it does not, cuts over automatically. We test the failover path on a schedule, because a backup that has never carried traffic is a hope rather than a plan.
Do you monitor the network around the clock, or only during business hours?
Around the clock. Firewalls, switches, access points and intrusion sensors report continuously, and alerts go to an engineer who investigates rather than to a mailbox. That covers a failed circuit at four in the morning before a Saturday shift, a device that starts talking to an address it never has before, and a configuration change nobody authorized. You get a dedicated account manager with a real cell number for the conversations that need a person.
Find out what your network lets through.
Discuss your firewall, segmentation, remote access and monitoring needs with an engineer. Any technical review begins with an agreed scope and access requirements.