Las Vegas, Nevada

AI-Powered Security & Continuity for Modern Business

Quantum Logic Systems, LLC builds the EFA Suite — an integrated family of AI-powered products for email security, continuity, monitoring, compliance archiving, and cloud storage. Five products, one family: OpenEFA, EFAlifeline, EFASentry, EFAarchive, and EFAdrive.

What We Deliver
Cloud SaaS Appliances On-Premise Maintenance Support
NEW RESEARCH
The State of Spam & Security 2026 — Our first annual report from the OpenEFA Research team examines the shift from indicators to intent in modern email defense.
Read the Report

About Quantum Logic Systems

We're a Las Vegas-based software company focused on one mission: making enterprise email security accessible to businesses of all sizes.

As the creators and maintainers of OpenEFA, we combine cutting-edge AI technology with practical, affordable solutions. Our platform protects organizations from phishing, spam, malware, and business email compromise (BEC) attacks.

Whether you need a fully managed cloud solution, an on-premise appliance for compliance, or ongoing support and maintenance — we deliver.

97%+

F1 Accuracy

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Live Support

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Processing

24/7

Emergency

Our Products

AI-Powered Security Solutions for Modern Business

OpenEFA Cloud

Fully managed, cloud-hosted email security. Deploy in minutes by pointing your MX records to our infrastructure. No hardware, no maintenance.

  • Instant deployment
  • AI-powered filtering
  • Web management portal
  • Works with M365, Google, Zoho
Learn More

OpenEFA Appliances

Physical or virtual appliances deployed at your location. Ideal for organizations with data residency or compliance requirements.

  • On-premise deployment
  • Data stays on your network
  • Remotely managed by us
  • HIPAA/compliance ready
Request Quote

EFASentry

AI-powered security monitoring for small & mid-sized businesses. Watches email threats, network health, endpoint integrity, and firewall drift — with plain-English remediation guidance.

  • Network & endpoint monitoring
  • AI-guided remediation
  • Cyber-insurance reporting
  • MSP multi-tenant ready
Learn More

Support & Maintenance

We stand behind our products with comprehensive support options

Support Contracts

Multiple support tiers to match your needs — from basic email support to dedicated account management with priority response times.

  • Phone, chat, and screen sharing
  • 18/7 live support + 24/7 emergency
  • Dedicated support for enterprises
  • Priority issue resolution
View Support Plans

Maintenance Contracts

Keep your OpenEFA deployment current with ongoing updates, security patches, and AI model improvements.

  • Regular software updates
  • Security patches
  • AI/ML model updates
  • Threat intelligence feeds
Get a Quote

Ready to Secure Your Email?

Join businesses worldwide who trust OpenEFA for their email security.

Get in Touch

Have questions about OpenEFA, need a custom quote, or want to discuss your email security needs? We're here to help.

Company Information

Quantum Logic Systems, LLC

Las Vegas, Nevada, USA

702.482.9331

Support

Existing customers: View support options

24/7 emergency support available for contract customers

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