New York has more law firms, and more large law firms, than any other US city, and that concentration makes Manhattan practices a constant target. Attackers go after the deal rooms of transactional firms, the discovery sets of litigation shops and the escrow accounts of real estate practices in Queens and Brooklyn. AI tools now let them write flawless phishing emails, spoof a managing partner’s voice on a call and research a firm’s staff from public bar records in minutes.
Firms in the city also face pressure from their own clients. Banks, insurers and other financial institutions headquartered in New York send detailed security questionnaires to outside counsel, cyber insurers want proof of MFA and tested backups, and the New York SHIELD Act requires reasonable safeguards for private information. A provider that can sit in your conference room and walk through those requirements is worth a lot.
Every company below is based in New York City or the immediate metro and works with law firms. The list mixes managed IT providers that build security into everyday support with specialists for incident response and litigation work. If you also need offensive testing, compare our list of penetration testing companies in New York.
| Company | Headquarters | Best For | Core Services |
| Kraft Kennedy | New York, USA | Large and AmLaw firms | 24/7 SOC, partner CISO, Microsoft security, managed IT |
| Kroll | New York, USA | Firms managing a breach or cyber litigation | Incident response, digital forensics, litigation support |
| Tabush Group | New York, USA | Small and midsize firms | SOC as a service, desktop as a service, managed IT |
| Computer Resources of America | New York, USA | Midsize firms moving to Azure | Managed IT, cybersecurity, cloud, staffing |
| Setton Consulting | New York, USA | Firms wanting flat-rate IT with security included | Managed IT, security assessments, email security |
| InterDataLink | New York, USA | Firms worried about wire fraud | Email security, access control, encryption, managed IT |
| Bit by Bit | New York, USA | Firms needing a zero trust rebuild | Managed cybersecurity, Intune, cloud, help desk |
| A M Exclusive | Queens, New York, USA | Small firms in the outer boroughs | Managed IT, backups, ransomware protection |
| CyberDuo | Los Angeles, USA (SoHo office) | Firms using iManage or NetDocuments | 24/7 detection, email security, vCISO |
| LISS Technologies | Roslyn, New York, USA | Firms moving to a private cloud | Cybersecurity, private cloud hosting, backup |
Kraft Kennedy has its New York office at 630 Third Avenue and additional offices in Chicago, Houston, Boston, Washington DC and Wilton, Connecticut. It has specialized in the legal industry for more than 30 years and says it serves over 90% of the AmLaw 100. Its core services are managed IT, project management and a dedicated Security and Compliance practice, which makes it a natural fit for large firms and ambitious midsize firms.
The security practice runs a 24/7 SOC staffed by certified analysts and covers vulnerability scanning, log management, managed firewalls, ransomware protection, intrusion detection and awareness training. Its partner CISO service gives firms access to CISO expertise without a full-time hire. Kraft Kennedy also does Microsoft-centric security work that law firms need most: Azure Information Protection for encrypting and revoking access to sensitive documents, Intune for attorney laptops and phones, and passwordless authentication planning.
Kroll is headquartered at One World Trade Center in Lower Manhattan, and its Cyber and Data Resilience practice handles incident response, digital forensics and breach notification work. It is not a day-to-day IT provider. Law firms bring Kroll in when they are breached themselves, or when a client matter involves a cyber incident, a forensic discovery demand or a regulatory investigation.
Kroll’s litigation support team works directly with outside counsel and general counsel to collect and preserve data from servers, laptops and phones, analyze it and explain the findings. Many of its experts have testified before judges, juries and arbitrators, and some have served as special masters. That makes Kroll a resource in two ways: as the emergency call during a ransomware event at the firm, and as an expert partner on cyber-related matters for clients. Firms should set up a retainer before they need it.
Tabush Group is headquartered at 148 West 37th Street in Midtown Manhattan, with a second office in Quincy, Massachusetts. It serves small and midsize professional organizations, and law firms are the first industry it lists. Services include managed IT, co-managed IT for firms with an internal team, a virtual CTO for each client, help desk and on-site support, and a 360 IT assessment.
Security is delivered through Boxtop Guardian, a fully managed SOC as a service with monitoring, detection and mitigation around the clock, plus awareness training, testing and reporting. Tabush also runs Boxtop, a desktop as a service platform that moves Windows desktops into its private cloud, which keeps client files off attorney laptops and simplifies remote work. One of its published case studies describes a law firm meeting cybersecurity regulations through Boxtop, a sign that the service has been tested in legal settings.
Computer Resources of America, known as CRA, is a New York City managed IT provider at 729 Seventh Avenue, with a service location in Uniondale on Long Island. It offers managed IT, cybersecurity, cloud solutions, IT consulting and staffing, and it describes law firms as one of its specialties among regulated sectors. It suits midsize firms that want a single provider for operations, cloud and security.
CRA delivers its services through Manage360 and Monitor360 frameworks, and its law firm guidance focuses on ransomware defense, endpoint detection and response, phishing prevention, awareness training and zero trust architecture. It has published a case study on a large NYC law firm moving to Microsoft Azure with CRA as its managed service provider. The staffing arm is a useful extra for firms that need a contractor to cover a vacancy in their own IT team while they recruit.
Setton Consulting is based at 225 West 35th Street in Manhattan and serves firms across Manhattan, Brooklyn and the wider metro. Its managed IT service for law firms supports platforms such as Clio, iManage and NetDocuments and includes encrypted email, secure remote access, backup and disaster recovery, MFA, phishing simulations and staff training. Cybersecurity is included in every package.
The quarterly security reviews are the feature to note: Setton aligns them with the New York SHIELD Act, bar expectations and cyber insurance requirements, so the firm has a regular record of what was checked and fixed. Pricing is flat-rate and monthly, which helps small and midsize firms budget. The service follows a five-step process of assessment, risk identification, implementation, monitoring and ongoing compliance reviews, which gives managing partners a clear picture of what they are buying.
InterDataLink is a New York City managed IT provider that started as a two-person operation in Midtown Manhattan and now has local teams for Manhattan, Queens, Brooklyn, Long Island and Northern New Jersey. It has a dedicated law firm practice alongside work for accounting firms and commercial real estate. Its services include managed IT, networking, cloud, on-site support and cybersecurity.
The law firm offering is unusually specific. InterDataLink encrypts data at rest and in transit in line with ABA Formal Opinion 477R, enforces MFA on every attorney account and sets up role-based access so only the matter team can open a matter file. For wire fraud, it uses look-alike domain filtering, DMARC, SPF and DKIM, and secure client portals so payment instructions never go out by plain email. Immutable backups and legal hold-aware retention policies also help with e-discovery.
Bit by Bit is an IT services company with its New York office at 115 West 29th Street, plus offices in Arlington, Texas and Newton, Massachusetts. It lists law firms among its core industries and offers managed cybersecurity, cloud services, co-managed IT, unified communications, staff augmentation and secure enterprise fax with audit trails, still a requirement in many litigation and real estate practices.
A published engagement with a midsize New York law firm shows the typical scope: a full network assessment and overhaul, fully managed laptops for every employee, Microsoft Intune device management, 24/7 help desk, a cybersecurity assessment and a zero trust architecture with app protections. Bit by Bit says its managed hosting and cloud services are SOC 2 Type 2 certified, a useful answer when a client questionnaire asks where firm data is hosted. It suits firms that need a reset rather than incremental fixes.
A M Exclusive Business Machines is based in Glendale, Queens, and provides managed IT services to law firms across New York City and Long Island. It runs a dedicated support line for its law firm partners. Services include layered cybersecurity, secure backups, ransomware protection, email security, disaster recovery planning, help desk support, Microsoft 365 management and IT planning.
A M Exclusive is a good match for small firms and solo practitioners who need a nearby provider rather than a national one. Its compliance work focuses on what small firms actually face: security assessments and documentation for cyber insurance applications and client security requirements. It also offers Verkada physical security and network security hardware, so one vendor can cover the office door, the cameras and the firewall. The firm publishes a free report on small law firm risks such as ransomware and business email compromise.
CyberDuo is headquartered in the Los Angeles area and opened a New York office at 177 Prince Street in SoHo to serve regulated firms in the city, including law firms, financial services and private equity. Its law firm service combines a help desk staffed by senior engineers with patching, device management, MFA and identity controls, 24/7 threat detection and response and ransomware-resistant backups.
CyberDuo frames its legal work around ABA Model Rules 1.1 and 1.6 and Formal Opinions 477R and 483, and it supports and secures iManage, NetDocuments, Clio and Worldox. It helps firms complete client security questionnaires and provides vCIO and vCISO services, which matters in New York, where outside counsel guidelines from financial clients can run to dozens of pages. It is a good fit for firms that want a security-led provider with a local presence.
LISS Technologies is based in Roslyn on Long Island and calls New York City its hometown, with a legal IT practice serving firms in the city and beyond. Its law firm services cover cybersecurity, backup and recovery, private cloud hosting, IT consulting, software procurement, vendor management, data archiving and around-the-clock support.
On security, LISS finds network vulnerabilities, monitors networks remotely, deploys endpoint protection and builds compliance measures into the firm’s infrastructure. The private cloud option moves firm files off on-site servers so attorneys can work from anywhere, a common route for small and midsize firms trying to reduce ransomware exposure. Vendor management is a helpful extra for firms juggling practice management, billing and document systems from several suppliers, since LISS can take ownership of those relationships.
New York firms have plenty of options, so focus on fit with your size, client base and software. These questions help narrow the field.
Most support is remote, but a failed firewall before a filing deadline or a closing still needs a technician in the office. Ask where engineers are based, whether they cover your borough or suburb and what same-day on-site support costs.
Banks, insurers and asset managers often push their own security expectations down to outside counsel. Ask whether the provider has completed questionnaires for financial clients, can produce policies and evidence, and offers a vCISO or partner CISO to own the answers.
Many providers resell a third-party SOC. That can work well, but you should know who watches the alerts and who has authority to isolate a device at night. Compare the answers with what dedicated managed detection and response providers offer.
Your managed IT provider will handle recovery, but serious incidents usually need forensics, breach counsel and insurer coordination. Agree the plan in advance and read our step-by-step guide to handling a ransomware attack.
Ask for a written list of what the fee covers: EDR, email security, backups, awareness training, MFA, security reviews and incident hours. Items left out often appear later as projects. Flat-rate pricing is easier to budget, but check the limits.
New York law firms can choose from specialists that work almost entirely with large firms, like Kraft Kennedy, local managed IT providers that know small and midsize practices, and response experts such as Kroll for the worst day. Shortlist providers with real legal clients in the city, test their answers on wire fraud, questionnaires and incident response, and make sure your security plan covers both daily protection and a breach.