Managed Security Services Built for How Your Business Actually Grows
Defensible's MSSP services deliver 24/7 cybersecurity monitoring, threat detection, and incident response, aligned to your stage of growth and tolerance for risk. Not a dashboard. A defense.
Built and led by former Stroz Friedberg leaders. Top 250 MSSP, 2024 & 2025.
Most Cybersecurity Programs Stop Keeping Pace With the Business
Tools get added. Vendors get layered on. The IT team stretches. Somewhere along the way, the measure of success quietly becomes "we haven't been hacked yet." That's not a security strategy.
A modern managed security service provider closes that gap with continuous monitoring, real threat detection, and an incident response capability built for the way attackers actually operate today.
No 24/7 visibility
Threats land outside business hours and nobody is watching.
Alert fatigue
Your team is drowning in low-signal noise from every tool.
Slow detection
Average dwell times mean attackers move freely for weeks.
Compliance pressure
Auditors, customers, and insurers all want proof of monitoring.
Tool sprawl
EDR, SIEM, firewall, email, cloud, all separate, none correlated.
No IR muscle
When something is detected, nobody knows what to do next.
What a Modern Managed Security Service Provider Actually Does
A managed security service provider operates as an extension of your business, owning the continuous work of monitoring, detecting, and responding to cybersecurity threats so your internal team can focus on running operations.
Continuous oversight of your environment, around the clock, every day of the year.
Correlated alerts across endpoints, network, identity, and cloud, not just raw logs.
Containment and remediation, not just notification when something is detected.
Documentation that auditors, insurers, and customers accept.
Comprehensive Managed Cybersecurity Services
Cybersecurity managed services built for SaaS, healthcare, financial services, and other growing organizations where the stakes keep rising.
24/7 Security Operations Center (SOC)
A dedicated security operations team monitors, investigates, and responds around the clock. Our SOC outsourcing model gives you enterprise-grade detection capability without standing up your own team.
- 24/7 SOC Monitoring — Continuous oversight across your environment
- Threat Detection & Triage — Real analysts investigating real signals
- SIEM Management — Correlation, tuning, and alert engineering
- Threat Intelligence — Shared intelligence across our entire client base
Managed Detection & Response (MDR)
Endpoint detection and response operated as a managed service. EDR and XDR platforms are powerful, but only when someone is actively running them. Defensible's MDR includes the tools and the team.
- EDR / XDR Management — Configured, tuned, and actively monitored
- Endpoint Detection — Behavioral analytics, not just signature matching
- Containment & Remediation — Threats neutralized, not just escalated
- Identity Threat Detection — Credential abuse, lateral movement, privilege escalation
Vulnerability & Exposure Management
Continuous identification and prioritization of vulnerabilities across your environment, ranked by real business impact rather than raw CVSS scores.
- Vulnerability Management — Continuous scanning and risk-based prioritization
- Penetration Testing — Targeted offensive testing against your real attack surface
- Cloud Security Posture — AWS, Azure, and GCP configuration monitoring
- Attack Surface Management — External exposure tracking and remediation
Incident Response & Forensics
When an incident occurs, the team responding has worked hundreds of them. Our DFIR experts contain the threat, recover operations, and produce the documentation regulators and insurers expect.
- 24/7 Incident Response — Senior responders engaged in under an hour
- Digital Forensics — Court-defensible investigation and chain of custody
- Ransomware Response — Containment, recovery, and negotiation guidance
- Tabletop Exercises — Practice the response before you need it
What Makes Defensible Different From Other MSSPs
Most MSSP services are built around dashboards and monthly reports. Ours are built around outcomes.
Founded by former Stroz Friedberg leaders. Our DFIR experience shapes every detection rule we write.
Whether closing a gap or containing an incident, we move in hours, not weeks.
Our service scales with your growth stage and risk tolerance. No one-size-fits-all packages.
You see what we see. No black-box alerts, no vague reports, no compliance theater.
Managed Security Across Regulated & High-Growth Industries
Our cybersecurity managed services support organizations where compliance, customer trust, and business continuity are non-negotiable.
SOC 2 monitoring evidence and customer security reviews.
HIPAA-aligned monitoring and PHI protection.
SEC, FINRA, NYDFS and PCI DSS monitoring.
Portfolio company protection and M&A cyber diligence.
Donor data and regulated reporting protection.
Client confidentiality and breach defensibility.
PCI DSS scope, fraud, and customer data protection.
Audit-ready monitoring to win enterprise customers.
How We Onboard Your Environment
A structured path from initial conversation to a live, fully managed security program.
- STEP 1Security Consultation
Discovery call to understand your environment, stack, risk tolerance, and compliance pressure.
- STEP 2Environment Assessment
Map your assets, data flows, identity stack, and existing security tooling.
- STEP 3SOC Onboarding
Telemetry connected, baselines established, and detection rules tuned for your environment.
- STEP 4Active Monitoring
24/7 SOC monitoring goes live with weekly tuning during the first 90 days.
- STEP 5Continuous Improvement
Monthly reporting, quarterly business reviews, and ongoing threat-landscape adjustments.
"I've worked with Defensible for years, and they're in a different league from other MSPs and security providers. Their team brings unmatched expertise, sharp strategic thinking, and a level of commitment that's rare in this industry."
— Max Everett, CISO, Shaw Industries · Former CIO, The White House and U.S. Department of Energy
Frequently Asked Questions
What is a managed security service provider (MSSP)?+
A managed security service provider operates security as a service on behalf of your business. The MSSP owns continuous monitoring, threat detection, alert triage, and incident response, typically supported by a 24/7 Security Operations Center, threat intelligence, and managed detection and response tooling.
How is Defensible different from a generic MSSP?+
Most MSSPs install tools and forward alerts. Defensible operates as an active security partner. Our DFIR-trained analysts investigate and contain threats, our detection rules are written based on real incidents we've handled, and our reporting connects security work to business outcomes rather than vanity metrics.
Do I still need an internal security team if I have an MSSP?+
You still need someone responsible for security on your side, but you don't need a 24/7 SOC, a SIEM engineer, or a senior incident responder on payroll. The MSSP handles continuous operations; your internal owner makes strategic decisions and acts as the integration point.
Can your MSSP services support SOC 2, HIPAA, or PCI DSS compliance?+
Yes. Our monitoring, logging, and incident response capabilities produce the evidence required by SOC 2, ISO 27001, HIPAA, PCI DSS, and other frameworks. We also coordinate directly with your auditors and compliance team to streamline evidence collection.
How quickly can monitoring go live?+
Most environments can be fully onboarded and under active 24/7 monitoring within two to four weeks, depending on the complexity of your stack. We can begin emergency coverage faster when an active incident is involved.
What does MSSP pricing look like?+
Pricing is based on scope, including the number of endpoints, identities, cloud workloads, and the level of incident response retainer required. We provide a clear, fixed quote after the initial assessment, no surprise overages.
Modern Managed Security, Built for How You Actually Operate
Stop measuring success in alerts and dashboards. Start measuring it in containment time, audit outcomes, and the threats that never reached your business.