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Cybersecurity Services in the Inland Empire

Layered protection sized for a real business — not an enterprise budget.

Talk to an engineer today

Response within 15 minutes during business hours. No call center.

(714) 883-1083Book a free assessment

Ransomware and payment fraud now target companies with 10 employees as readily as companies with 10,000. Quantum designs security in layers: identity, endpoint, email, network and backup — each one monitored, each one tested. The result is a business that can pass a cyber-insurance questionnaire and sleep at night.

Sound familiar?

  • Your cyber-insurance renewal is asking questions you can't answer
  • Staff still share passwords or skip MFA
  • A phishing email almost got a wire transfer approved
  • No one has tested whether backups actually restore

What's included

  • Managed endpoint detection and response (EDR) on every device
  • Multi-factor authentication and conditional access rollout
  • Email security, phishing simulation and staff awareness training
  • Next-generation firewall management and network segmentation
  • Vulnerability scanning and monthly risk reports
  • Incident response plan and tabletop exercises

How an engagement works

1

Assess

A free, one-hour review of your current environment with a written summary of findings, risks and a fixed price.

2

Architect

We document everything, fix the highest-risk items first and deploy monitoring and security tooling — usually within two to four weeks.

3

Operate

Ongoing support with a 15-minute response target, quarterly reviews and a roadmap that keeps technology ahead of the business.

Cybersecurity Services delivered by senior engineers, on site across the Inland Empire

Cybersecurity Services across the Inland Empire

Quantum is headquartered in Rancho Cucamonga and provides cybersecurity services with same-day on-site service in Rancho Cucamonga, Ontario, Riverside, San Bernardino, Fontana, Corona, Upland, Chino Hills & Chino and throughout Riverside and San Bernardino counties. Clients in Los Angeles and Orange County are supported remotely with scheduled visits.

Frequently asked questions

Do small businesses in Riverside and San Bernardino County really get attacked?

Yes. Attackers automate their targeting, and smaller companies are attractive because defenses are thinner. Most incidents we see start with a phishing email or a reused password, not a sophisticated exploit.

Will you help with our cyber-insurance application?

Yes. We map your controls to the carrier's questionnaire, close the gaps (usually MFA, EDR and tested backups) and provide documentation the underwriter accepts.

Is cybersecurity included in managed IT?

A security baseline is included in every managed plan. Advanced services such as 24/7 SOC monitoring, compliance programs and penetration testing are scoped separately.

Ready to put cybersecurity services to work?

Start with the free assessment. You will get a written summary and a fixed monthly price — no pressure, no long contract.