MJN Technology Services is your one stop Long Island technology partner that protects your business and helps your team become more productive through AI. Our US based team manages and secures your computers, servers, Microsoft 365, daily verified backups, and Zero Trust cybersecurity for one predictable monthly rate, and implements practical AI workflows with Claude, Grokbot, and ChatGPT under the same roof.
A protected, well run IT and cybersecurity environment is our foundation. Once your computers, servers, backups, and Microsoft 365 are locked down and running smoothly, we help your team put AI to work safely across your daily operations.
We are a 24/7 Time Critical Business that can always count on outstanding I.T support from Steve and his Team. We refer to MJN not as a Vendor but part of our own in house team.
We recently had the pleasure of working with MJN on a cybersecurity project, and their professionalism and expertise were outstanding. Their team's commitment to excellence and innovative approach made a significant impact. It’s always refreshing to collaborate with a company that prioritizes client success and delivers top tier solutions. Highly recommend their services!
Mjnit has been my companies full service IT company for 20 years. Their service is phenomenal, 2nd to none. I highly recommend them. ⭐️⭐️⭐️⭐️⭐️
Most IT companies say they take security seriously. We submitted to an independent review. An accredited third party assessor examined how we protect our clients against 177 security controls under the GTIA Cybersecurity Trustmark programme, completed May 23, 2025, with an initial certification period through May 22, 2026. Our annual Trustmark renewal is currently in progress, and this page will be updated as soon as GTIA confirms the renewed certificate.
Why this matters. Learn more →Hackers target businesses of every size, not just the big ones. Can you answer a definite Yes to all nine of these questions?
Has an expert checked your business for security gaps within the last year?
Has your whole team been trained this year to spot scam emails and online tricks?
Do you have insurance that covers your business if you get hacked?
Do your email and online accounts require a second step to log in, like a code sent to your phone?
Do your email, servers, and computers have modern security protection, not just basic antivirus?
If your systems went down today, do you have backups stored offsite and a tested plan to get back up fast?
Is everything in your Microsoft 365 or Google account backed up separately, in case it gets deleted or locked?
Is someone watching your computers and network for threats around the clock, every day?
Are your computers and equipment updated with the latest security fixes every day?
If you answered No to even one of these, your business may be at risk. One attack can lock up your files, drain your finances, and damage the reputation you spent years building. The fix starts with a single conversation.
A protected, well run IT foundation comes first. As your one stop technology partner, we handle all of your IT support, cybersecurity, Microsoft 365, and backups, and implement practical AI workflows under one flat rate managed IT agreement.
Everything below, as one agreement. Unlimited US based support, 24/7 monitoring and security, at one flat monthly rate.
A help desk your staff can call without anyone counting, backed by daily patching and round the clock monitoring.
Zero Trust architecture, managed detection and response, multifactor authentication and security training for your team.
Offsite backups verified daily with screenshot proof they restore, and a recovery plan we have actually tested.
Migration, email security, identity and access control, and separate backup of the 365 data Microsoft does not protect for you.
The right tools for the work your team actually does, busywork automated, and staff trained to use it safely.
We tailor a security first technology program to the compliance demands and software of the professions we serve.
Protect attorney client privilege with compliant, always available IT and elite cybersecurity.
IRS WISP ready security and dependable tax season uptime for accounting practices.
SEC and FINRA aligned protection for client assets and the sensitive data behind every relationship.
MJN is based in Wantagh and supports businesses across both counties. Our clients include firms in Garden City, Mineola, Plainview, Bellmore, Farmingdale, Melville, Huntington and Deer Park.
We specialize in IT for Long Island law firms, CPA and accounting firms, and wealth advisors.
See what we cover in Nassau County and Suffolk County. Because our US based team delivers the work remotely, your response time does not depend on drive time, and there is no travel surcharge built into your rate.
Representative scenarios showing how we typically help regulated Long Island firms. They are illustrative composites, not individual client case studies, and client names are never shared.
Practice Management and Security
Challenge
Needed strict protection for confidential case files, reliable remote access for attorneys, and faster review of lengthy legal documents without exposing client data to public AI tools.
MJN Solution
Deployed Zero Trust Microsoft 365 security, daily verified offsite backups, and private business owned AI workspaces with role specific staff training.
Deliverables: Daily verified offsite backup recovery readiness, Zero Trust access controls around confidential case files, and private AI workspaces for summarizing case files and drafting correspondence.
Tax Season Uptime and WISP Compliance
Challenge
Faced strict IRS WISP security requirements, heavy tax season ticket volume, and manual client document intake bottlenecks.
MJN Solution
Implemented 24/7 endpoint detection and response, multifactor authentication, a written WISP security program, and automated AI document extraction workflows.
Deliverables: Round the clock monitoring through tax season, a written WISP aligned with IRS requirements, and streamlined intake of client tax organizers.
SEC and FINRA Aligned Protection
Challenge
Required audit ready cybersecurity controls, encrypted archiving, and streamlined client meeting prep and follow up tracking.
MJN Solution
Locked down endpoints and cloud access against 177 security controls, backed up Microsoft 365 independently, and trained advisors on secure AI meeting summaries and follow up workflows.
Deliverables: Documented security controls ready for compliance reviews, US based help desk support, and secure AI meeting summaries that speed up client follow ups.
Want to hear it directly from our clients? Read our 87 verified 5.0 star Google reviews