Cybersecurity Services in San Diego
NetSys provides cybersecurity services to businesses in San Diego: 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. San Diego is served from Brooklyn, three hours behind us on Pacific time. Monitoring, help desk and remediation run remotely around the clock from Brooklyn, with coverage hours stated in Pacific 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 San Diego: 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 Pacific 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 San Diego
San Diego is served from Brooklyn, three hours behind us on Pacific time. Monitoring, help desk and remediation run remotely around the clock from Brooklyn, with coverage hours stated in Pacific 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. UTC and Sorrento Valley have carrier choice, but Kearny Mesa industrial parks and Carlsbad offices often run on a single Cox circuit, and defense suppliers need CUI on segmented systems, so the compliance boundary shapes the network. The carriers we see most in San Diego are Cox Business, AT&T Business Fiber and Spectrum Business, and the failover design starts with which of them actually reach your building.
Who cybersecurity in San Diego is built for
Most of our San Diego work sits in Downtown San Diego, Sorrento Valley, UTC, Carlsbad and Kearny Mesa: biotech and medical-device companies on Benchling, defense contractors on Deltek Costpoint, medical practices on eClinicalWorks, professional firms on QuickBooks Online, hospitality businesses on Toast, 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 San Diego
Two things shape the continuity design here. First, the weather and the grid: wildfire smoke and Public Safety Power Shutoffs in the East County are the recurring risk, so backups live out of region and failover uses cellular. Second, the attacks that actually land locally are ordinary ones, and the public record shows how they go: the May 2021 ransomware attack on Scripps Health, which diverted emergency patients and cost the system an estimated $113 million by its own disclosure. The controls in the next section are the ones that would have changed those stories.
Cybersecurity in San Diego: what NetSys delivers
Detection and response
- ThreatDown managed detection and response with EDR agents on every workstation, laptop and server, monitored 24/7
- Microsoft Defender for Business and Rapid7 InsightIDR telemetry from identities, email and endpoints, with a person acting on alerts
- Isolation of a compromised device in real time, with an engineer on the case rather than a ticket in a queue
- Incident investigation and a written timeline for leadership, counsel and your insurer
Identity and email
- Entra ID Conditional Access and multifactor authentication across Microsoft 365, with legacy authentication switched off
- Privileged access and privileged identity management so admin rights are granted just in time and removed afterwards
- Barracuda Email Protection in front of every mailbox, with SPF, DKIM and DMARC enforced
- KnowBe4 security awareness training with simulated phishing built from the lures your industry receives
Exposure and recovery
- Rapid7 InsightVM vulnerability scanning on a schedule, with findings fixed rather than filed
- Cisco Meraki or Fortinet firewall management, segmentation and DNS filtering on office and remote devices
- Immutable backups through Datto SIRIS or Veeam, with restores tested and documented
- The free remote external penetration test, limited to available information and the external scope agreed with you
A 60-person hospitality busines in Downtown San Diego
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 hospitality busines in Downtown San Diego with 60 staff, client data in Toast and five permanent Global Administrators in the tenant. A client received an invoice from the company's own domain with altered wire instructions. There is no multifactor authentication on three of the admin accounts, a former employee's login is still active, the backups have never been restored, and a written incident response plan does not exist.
- Monthly review of dormant accounts, forwarding rules, consent grants and administrator assignments, reported in writing
- Free remote external penetration test limited to information available to NetSys and the external scope agreed with the business; internal review and remediation scoped separately
- ThreatDown MDR and EDR deployed to every workstation, laptop and server, including the ones partners use from home, with the console monitored 24/7
- Rapid7 InsightVM deployed for scheduled vulnerability scanning, with the first month's findings prioritized and closed
- Cisco Meraki firewall installed with intrusion prevention, geo-blocking, segmentation between finance, servers, printers and guests, and DNS filtering on every device
- KnowBe4 rolled out with a baseline phishing test in week one and training on a recurring schedule, aimed at the lures the industry actually receives
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.
Firewall, antivirus and maintenance for a five-person office
A five-person office needed the basics done properly rather than an enterprise stack. NetSys replaced the internet provider's router with a business-grade firewall configured with sensible rules, secure remote access and logging, deployed managed antivirus on every machine with updates and alerts handled centrally, and put patching, backup checks and health reviews on a schedule. The agreement covers what the office needs and nothing it does not, month to month. No outcome figures were measured for publication.
Compliance in San Diego: the CCPA and what sits on top of it
If you hold personal information on a resident of California, the California Consumer Privacy Act as amended by the CPRA (Cal. Civ. Code § 1798.100 et seq.) requires reasonable security under § 1798.81.5 for any business holding Californians' personal information, gives consumers a right to sue after a breach caused by the lack of it, and sets the breach-notification duty under § 1798.82. The CCPA's consumer-rights obligations apply to businesses above the revenue and data thresholds. Healthcare practices add HIPAA and the Confidentiality of Medical Information Act, venture-backed companies answer to investor and enterprise-customer security questionnaires, and biotech and hardware firms protect intellectual property that a breach cannot restore. 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 San Diego
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 Life Sciences & Biotech · IT for Government Contractors
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 San Diego: Managed IT Services · IT Consulting · IT Support
Cybersecurity elsewhere: Palo Alto · Los Angeles · New York City · Brooklyn, NY · Nassau County, NY · Suffolk County, NY
Related services: Penetration Testing · Cyber Insurance Readiness · Security Assessments · Managed Detection & Response (MDR)
Cybersecurity in San Diego: 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 San Diego?
Our office is in Brooklyn, NY. San Diego is served from Brooklyn, three hours behind us on Pacific 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 Pacific time and any travel in writing, and the agreement runs month to month.
Does the CCPA apply to a small California business?
The consumer-rights side applies above thresholds ($25 million in revenue or data on 100,000 consumers), so many small businesses are outside it. Cal. Civ. Code § 1798.81.5's reasonable-security duty and § 1798.82's breach-notification duty apply to everyone, and the private right of action after a breach is what makes them expensive to ignore.
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.