IT Support for Financial Services Firms on Long Island
Banks and credit unions are headquartered in Hicksville, Hauppauge and Bethpage, and around them work mortgage lenders, premium finance companies, private equity sponsors and family offices from Jericho to Melville and along the North Shore. NetSys runs IT and security for the smaller firms in that market, built to the controls a DFS examiner or an investor's due-diligence questionnaire expects.
The short answer
NetSys provides IT support and cybersecurity for financial services firms on Long Island, including mortgage lenders and brokers, premium finance companies, private equity firms, family offices and other firms licensed by New York's Department of Financial Services. We run Microsoft 365 with multifactor sign-in for every user, managed detection and response, encrypted email, a documented asset inventory and restore-tested backups, and we keep the evidence behind Part 500 certifications and investor questionnaires. Our engineers work on site at offices in Nassau and western Suffolk, driving out from Brooklyn; firms near Patchogue and Port Jefferson get a confirmed drive time first, and East End offices are supported remotely.
Work we have done for clients in related fields
- Insurance
Regional title insurance company
Barracuda email protection for 85 users, phishing simulations, employee security training, and MFA deployment.
Security Awareness & Phishing TrainingIT for Insurance Agencies and Brokers
- Accounting firms
Corporate accounting firm
Migration of 2 TB of business data to Azure, secure remote access for 42 employees, and backup and recovery configuration.
- Wealth management
RIA firm
Barracuda email protection for 117 licensed users, email archiving, cybersecurity monitoring, and account access management.
Cybersecurity for Financial ServicesIT for RIAs and Wealth Management
Client names are withheld. These examples were chosen for the work involved, not for where the client is, so none is presented as a Long Island client.
What changes for a financial firm on Long Island
More financial institutions are based on the Island than most visitors would guess. Flagstar's principal executive offices are on Duffy Avenue in Hicksville, Dime Community Bancshares lists its executive offices on Veterans Memorial Highway in Hauppauge, and FourLeaf Federal Credit Union, the former Bethpage Federal Credit Union, runs from South Oyster Bay Road in Bethpage. The firms this page is written for are smaller: DFS-licensed mortgage bankers and brokers, insurance premium finance agencies, private equity and real estate sponsors in Jericho, Melville and Garden City, and single-family offices on the North Shore. They share a few habits. Staff split the week between a Long Island office, Manhattan meetings reached through Penn Station or, since 2023, Grand Central Madison, and home. Money moves by wire, so one compromised mailbox can mean a direct loss. And the people asking about security include regulators, partner banks, limited partners and auditors, each with its own questionnaire. The IT has to produce evidence that matches the answers the firm gives.
How support works for a Long Island finance office
Day-to-day support is remote and quick: a locked account before the market opens, a second monitor that went dark, a VPN client that broke after an update, a new analyst who needs access by nine. The help desk takes those calls and fixes most of them during the call. Severe problems, such as a suspected compromise, systems down or no internet, go straight to the dedicated engineer who knows your environment, and your account manager has a real cell number. For work that needs someone in the room, engineers drive out from Park Slope, about an hour to Jericho or Garden City and a bit longer to Melville, to rebuild a network closet, set up a conference room, move an office or replace a firewall. Written response commitments give critical issues a ten-minute phone response and a thirty-minute remote response.
The controls examiners and investors ask about
The list is short and specific. Multifactor authentication for every user on every system, which Part 500 has required of non-exempt covered entities since November 1, 2025, enforced through Entra ID Conditional Access. Separate administrator accounts with no mailbox. ThreatDown managed detection and response on every laptop and server, watched 24/7. Barracuda email protection, DMARC on your domain and Keeper for shared credentials. Rapid7 InsightVM scans on a schedule, with findings tracked to closure. KnowBe4 phishing training with completion records. An asset inventory that lists each system's owner, location, sensitivity, support end date and recovery time objective, as section 500.13 now requires. We keep all of it in IT Glue, so when the April 15 certification or an investor's due-diligence questionnaire arrives, the evidence already exists and the answers match it.
Wire fraud, ransomware and the 72-hour clock
Most losses at small finance firms start in email. An attacker reads a mailbox for weeks, then sends wire instructions that look routine. Our defenses are plain: alerts on new forwarding rules and impossible-travel sign-ins, external-sender tags, and a written callback rule for any change to payment details, confirmed on a known phone number. Ransomware is the second risk. Suffolk County's 2022 incident, where attackers sat in the County Clerk's network for months before encrypting systems, shows why monitoring matters as much as prevention. For a covered entity the clock is short: DFS wants notice within 72 hours of determining that a cybersecurity incident occurred, and within 24 hours of any extortion payment. So the incident response plan names who calls counsel, who files with DFS and who restores what, and we rehearse it once a year with a tabletop exercise.
Everything else about how we serve the area, including coverage, how support is delivered and the honest answer about where our office is, lives on our page for IT services on Long Island.
Compliance rules for Long Island financial services firms
NYDFS 23 NYCRR Part 500
Part 500 applies to firms operating under a New York banking, insurance or financial services license. Since November 1, 2025, multifactor authentication has been required for any individual accessing a covered entity's information systems, along with a written, maintained asset inventory. Cybersecurity incidents must be reported to DFS within 72 hours, and by April 15 each year the firm files a certification of material compliance, or an acknowledgment of gaps, signed by its highest-ranking executive and its CISO.
Part 500's limited exemption
A covered entity with fewer than 20 employees and contractors, under $7.5 million in gross annual revenue in each of the last three years, or under $15 million in year-end assets qualifies for the limited exemption in section 500.19(a). It is spared the CISO, penetration testing, audit trail, encryption and incident response plan sections, among others, but still needs a risk assessment, policies, an asset inventory, third-party service provider oversight and MFA for remote access, cloud applications holding nonpublic information and privileged accounts.
FTC Safeguards Rule for non-bank lenders and brokers
Mortgage brokers, lenders and other non-bank financial institutions fall under the FTC's Safeguards Rule (16 CFR Part 314) in addition to any state license. The rule requires a written information security program with named controls, including multifactor authentication and encryption of customer information. Since May 13, 2024, a security event involving unencrypted information of at least 500 consumers must be reported to the FTC as soon as possible and no later than 30 days after discovery.
How the SHIELD Act fits with Part 500
A firm that complies with Part 500 or the GLBA regulations counts as a compliant regulated entity under section 899-bb, so that program meets its safeguards duty. The breach notice duty in 899-aa still applies: affected New Yorkers must be told within 30 days of discovery, the Attorney General, the Department of State and the State Police notified, and a DFS covered entity also notifies DFS under section 500.17. This is general information, not legal advice.
This is general information, not legal advice. Confirm your obligations with counsel.
Financial Services Firms in Long Island: FAQs
Who provides IT support for financial services firms on Long Island?
NetSys does. Our one office is in Brooklyn; engineers travel to firms in Nassau and western Suffolk, and offices farther east are supported remotely. We act as the IT and security team for lenders, brokers, private equity firms, family offices and other DFS-licensed businesses, or work alongside an internal IT person on a co-managed basis. Our engineers hold degrees in electrical engineering, electronics engineering and computer science and are certified in Cisco and Microsoft. Agreements run month to month, and 98% of clients stay with us.
What does IT support cost for a financial services firm on Long Island?
Support is priced per user per month once we have assessed the environment, and no list price is published. The main inputs are users and devices, the number of offices, how many systems hold nonpublic information, the level of monitoring and detection, email archiving and encryption, and the evidence work for Part 500 or investor reviews. A firm under the limited exemption needs less than a full covered entity. Projects such as an office build-out or a tenant migration are quoted separately after scoping.
How do you help financial firms on Long Island meet NYDFS 23 NYCRR 500?
We start with the risk assessment the regulation requires, then map each section to a control that is running and a record that proves it: MFA reports from Entra ID, the asset inventory, vulnerability scan results, training completions, backup restore logs and third-party service provider reviews. We help draft the policies, test the incident response plan and assemble the evidence for the April 15 filing. Your CISO, or the senior officer who signs, still makes the certification decision.
Do you support the market data, CRM and accounting systems our firm uses?
Yes, at the level of devices, network, identity and access. We install and update the applications, set up single sign-on where the vendor supports it, keep the workstations and connections they run on healthy, and manage who has access. Problems inside a market data service, loan origination platform, CRM or fund accounting system stay with that vendor; we open and follow the ticket and coordinate changes so they do not break your controls.
Do family offices and private equity firms on Long Island need the same controls?
Most need nearly the same technical controls even when the regulator differs. A single-family office that meets the SEC's family office rule is excluded from the Investment Advisers Act, so Regulation S-P does not reach it, but the SHIELD Act still covers the family's and employees' private information. Private equity sponsors face limited partner due-diligence questionnaires that ask about MFA, endpoint detection, backups and incident response. We build one program that answers all of them.
How do you answer an investor's or a bank's due-diligence questionnaire?
We fill in the technical sections from records we already keep in IT Glue: which controls run where, policy documents, MFA and endpoint coverage reports, backup test results and the latest vulnerability scan. Where a control is missing we say so and give a remediation date rather than overstate it. Our free external penetration test, a remote test of your internet-facing systems within an agreed scope, gives you a current, independent finding to attach.
Services behind this work
Related pages
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