Cyber Defense
Managed Cybersecurity Solutions
Cyber Defense combines 24/7/365 SOC monitoring, threat detection, and automated response in one platform to give your enterprise around-the-clock protection without the cost of building an in-house security operations center. Stay ahead of threats and keep your teams focused on what matters most.
Faster Detection, Unified Visibility, and Protection That Scales
Cyber Defense works wonders for enterprises juggling fragmented tools, alert fatigue, and stretched security resources. Our solutions combine a robust security stack powered by AI intelligence and expert-led operations with the flexibility to use our licensing and tools or to integrate with your existing investments. Here is what Cyber Defense helps you do.
Integrate Without Rip and Replace
Cyber Defense can connect to your existing security tools and data through an open, tool-agnostic architecture with more than 400 integrations. You keep the technology investments you have already made, avoid vendor lock-in, and strengthen your posture without disruptive migrations. Delivered as Security Operations Center as-a-Service (SOCaaS), Cyber Defense scales with your enterprise across clouds, networks, endpoints, and applications. Basic monitoring begins within 24 hours, and enterprise-wide onboarding completes in fewer than 60 days, so protection keeps pace with your operations.
Detect and Respond Automatically
Managed monitoring and detection pair with automated playbooks that resolve threats instead of just flagging them. With 98% automation for common response actions and more than 670 automated playbooks, Cyber Defense moves threats from detection to action fast, reducing the manual work that slows your team down.
See Everything in One Place
The Cyber Defense One portal delivers a unified view of your security data alongside customizable detections, rules, dashboards, and near-real-time reporting. You stay informed and in control, with the visibility strategic decision makers need to act with confidence.
Stay Compliant and Audit-Ready
Cyber Defense is SOC Type 2 certified and CMMC Level 2 certified, and supports alignment with HIPAA, PCI, CIS Controls, NIST, and cyber insurance requirements. Meet your industry mandates without the reporting headaches and prove your security posture when it counts. The Cyber Defense One portal delivers a unified view of your security data alongside customizable detections, rules, dashboards, and near-real-time reporting. You stay informed and in control, with the visibility strategic decision makers need to act with confidence.
Scale Security as You Grow
Delivered as Security Operations Center as-a-Service (SOCaaS), Cyber Defense scales with your enterprise across clouds, networks, endpoints, and applications. Basic monitoring begins within 24 hours, and enterprise-wide onboarding completes in fewer than 60 days, so protection keeps pace with your operations. Cyber Defense is SOC Type 2 certified and CMMC Level 2 certified, and supports alignment with HIPAA, PCI, CIS Controls, NIST, and cyber insurance requirements. Meet your industry mandates without the reporting headaches and prove your security posture when it counts.
Get Expert Support Around the Clock
A fully managed SOC provides continuous monitoring and specialized expertise, backed by a dedicated Customer Success Manager, a Systems Engineer, and a dedicated Zayo account support team throughout the relationship. You also get unlimited SOC support for incident response, access to a cybersecurity advisor, and periodic security reviews, with the option to add a $0 Incident Response Retainer and Breach Service Warranty up to $500K*. Think of us as an extension of your team, always on.
*Qualification subject to attestation of controls and active Cyber Defense XDR and EDR services.
From Reactive Defense to Proactive Protection
Modern security teams face a hard reality: threats multiply faster than headcount, tools pile up faster than they integrate, and compliance demands never let up. Cyber Defense meets each of these challenges head-on.
Challenge #1
Alert Fatigue
Endless alerts bury the events that actually matter, wearing teams down and slowing response. Cyber Defense cuts through the noise with managed detection that quickly identifies meaningful threats and reduces alert volume while surfacing what requires action.
Challenge #2
Fragmented Tools
Disconnected platforms create blind spots and drain resources. With more than 400 integrations across an open architecture, Cyber Defense unifies your tools and data, closing gaps without a rip-and-replace approach.
Challenge #3
Limited Security Staffing
Recruiting and retaining specialized security talent is expensive and slow. A fully managed SOC delivers round-the-clock monitoring, detection, and response, giving you enterprise-grade expertise without staffing a 24/7 operation internally.
Challenge #4
Compliance Pressure
Audits, regulations, and cyber insurance requirements demand constant attention. Cyber Defense supports alignment with HIPAA, PCI, CIS Controls, NIST, and more, backed by SOC Type 2 and CMMC Level 2 certifications, so you stay audit-ready.
Challenge #5
Reactive Defense Posture
Waiting to react to incidents leaves you exposed. Automated playbooks and response actions move you ahead of threats, resolving issues faster and freeing your internal teams to focus on strategic, higher-value work.
From Reactive Defense to Proactive Protection
Modern security teams face a hard reality: threats multiply faster than headcount, tools pile up faster than they integrate, and compliance demands never let up. Cyber Defense meets each of these challenges head-on.
Alert Fatigue
Endless alerts bury the events that actually matter, wearing teams down and slowing response. Cyber Defense cuts through the noise with managed detection that quickly identifies meaningful threats and reduces alert volume while surfacing what requires action.
Fragmented Tools
Disconnected platforms create blind spots and drain resources. With more than 400 integrations across an open architecture, Cyber Defense unifies your tools and data, closing gaps without a rip-and-replace approach.
Limited Security Staffing
Recruiting and retaining specialized security talent is expensive and slow. A fully managed SOC delivers round-the-clock monitoring, detection, and response, giving you enterprise-grade expertise without staffing a 24/7 operation internally.
Compliance Pressure
Audits, regulations, and cyber insurance requirements demand constant attention. Cyber Defense supports alignment with HIPAA, PCI, CIS Controls, NIST, and more, backed by SOC Type 2 and CMMC Level 2 certifications, so you stay audit-ready.
Reactive Defense Posture
Waiting to react to incidents leaves you exposed. Automated playbooks and response actions move you ahead of threats, resolving issues faster and freeing your internal teams to focus on strategic, higher-value work.
What Can Cyber Defense Do?

Cyber Defense XDR
Cyber Defense XDR (Extended Detection and Response) is a cloud-based, next-generation security information and event management (SIEM) solution for advanced threat detection, management, and incident response. You have the option to subscribe through Zayo or bring your own SIEM licenses/tools.

Cyber Defense EDR
Cyber Defense EDR (Endpoint Detection and Response) is advanced endpoint security. This cloud-based solution monitors, detects, and responds to incidents at every endpoint—wherever your systems are connected, enabling continuous monitoring of endpoints and data flows. You have the option to subscribe through Zayo or bring your own EDR licenses.

Cyber Defense ITDR-ISPM
Cyber Defense ITDR-ISPM (Identity Threat Detection and Response & Identity Security Posture Management) is a Managed Identity Security solution built to find misconfigurations in your identity environment and trace each event back to the gap that allowed it in. This solution identifies the setting(s) that enabled a breach and advises what needs to be fixed in severity rank order.

Cyber Defense CRI
Cyber Defense CRI (Cyber Risk Intelligence) offers vulnerability scanning and risk management through a single pane of glass, with actionable recommendations and mitigation plans.

Cyber Defense Email Security
Cyber Defense Email Security provides email protection for Microsoft 365 and G-Suite against phishing, malware, data theft, and account takeover—all powered by natural language processing to prevent the most sophisticated attacks from reaching end users.

Cyber Defense Expert Services
Cyber Defense Expert Services provides specialty services including security, orchestration, automation and response (SOAR) platform engineering, custom integrations, playbook modifications, tabletop exercises, KnowBe4 security awareness training, penetration testing, and incident response support.
Before, we used open-source log parsers. Unfortunately, this left us with many gaps in our ability to identify and respond to threats. The threat intelligence has helped us fix gaps in our security posture that we weren’t even aware of.
IT Engineer,
Featured Resources

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Frequently Asked Questions
Do we need to replace our existing security tools to use Cyber Defense?
No. Cyber Defense is built on an open, tool-agnostic architecture that integrates with your existing security tools and data through more than 400 integrations. You can strengthen your security posture without a rip-and-replace approach.
How is Cyber Defense different from building an in-house SOC?
An in-house SOC requires specialized talent, 24/7 staffing, infrastructure, and ongoing operational management. Cyber Defense provides fully managed, around-the-clock monitoring, detection, and automated response, along with dedicated experts, without the cost and resource demands of building that function internally.
How quickly can we get started?
Basic monitoring is active within 24 hours, and enterprise onboarding is complete in fewer than 60 days, so your organization gains protection quickly.
Is Cyber Defense suitable for organizations with an existing MSSP or security stack
Yes. Cyber Defense’s open architecture and broad integration ecosystem allow it to complement your existing environment, filling gaps in visibility, detection, or response rather than requiring a full replacement.
What kind of organizations benefit most from Cyber Defense?
Cyber Defense is well suited for organizations managing multiple security tools, platforms, or cloud environments, as well as those with limited security staffing or coverage gaps looking to strengthen detection, response, and compliance posture.
What differentiates Zayo’s Cyber Defense from other security providers?
Zayo combines cybersecurity and data path security to protect your business across an expanding threat landscape. Our SOC pairs advanced automation and threat intelligence with expert human support for comprehensive, full-stack protection.
Get Started with Cyber Defense
Experience around-the-clock security expertise, faster threat detection, and unified visibility, all from a single trusted partner. See for yourself why enterprises trust Cyber Defense to move from reactive defense to proactive protection.
