Become a breach-stopping machine.

Resolving alerts is good. Resolving all alerts is better.

Good enough isn’t.

Every alert is important because every alert tells a story. And that story can stop a threat. So, stop settling for so-called good security that just prioritizes alerts and allows real intruders to fall through the cracks.


Detect every threat. Resolve every alert. Stop breaches.

Managed Detection
& Response Services

The only way to detect every threat is to resolve every alert. We’ve built a registry of all trusted behaviors so our clients can benefit from the experiences of everyone in the community.

  • Automatically resolve 99% of security alerts.
  • Reduce risk acceptance and improve team productivity.

Cybersecurity Consulting Services

When good enough isn’t good enough, work with a team of elite cybersecurity professionals who have the expertise in technology, adversarial engagements, risk and compliance, privacy, and more.

  • Create a roadmap to improve your security posture.
  • Evaluate gaps and build confidence that operations are secure and optimized.

TEAMARES: Offensive
Security Services

TEAMARES can evaluate your security posture including vulnerability management, adversarial simulation penetration testing and onsite training.

  • Determine just how exposed your systems, services and data are to malicious actors.
  • Learn how to better defend your environment from potential threats.

On-the-Go Alert Response

Drive down attacker dwell time with CRITICALSTART MOBILESOC™. Through this iOS and Android app, we go beyond ticketing and instant notifications, giving you the ability to action incidents immediately with information gathered in our platform.

Instant Notifications
Never miss an event again with instant notifications on your homescreen!
Break the Tether

Communicate directly from anywhere with CRITICALSTART SOC analysts for remote collaboration, workflow and response.

  • Instant Notifications

    Never miss an event again with instant notifications on your homescreen!
  • Instant Notifications

    Never miss an event again with instant notifications on your homescreen!

Let’s talk MDR

Let us show you how our MDR service resolves every alert so we can accept the risk you shouldn’t.

  • By registering you are agreeing to receive email communications from CRITICALSTART
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    ARE-ON Utilizes MDR Services for eLearning Security

    The rise of eLearning and mobility has enabled education to happen across an ever-expanding environment. New MDR thinking delivers full-spectrum visibility for state educational networks.

    Schools Systems Rocked by Recent Cyber Attacks—But Not This One

    Learn how Centennial Schools System took action to prevent breaches by recognizing the critical importance of resolving every alert and working with an MDR vendor that provided trusted expertise through a technology-agnostic approach.

Take it from our clients


    I find the CRITICALSTART analysts to be very knowledgable. We rarely get things escalated to us that I feel they should have dealt with. It’s been a very good relationship.

    Director of Cybersecurity at Mattress Firm

    I would say that prior to the relationship with CRITICALSTART, my SOC analysts were experiencing what we all call alert fatigue. CRITICALSTART has really been able to reduce those alerts… I’ve been able to take our level three and four analysts and put them back to work at what they were hired to do.

    Head of Security Operations at MoneyGram

Incident response consulting

Reactive emergency response and proactive incident readiness services to help you prepare, respond and remediate.

Strategic product
fulfillment in TOLA

We’ll analyze your security challenges and present a plan on how you can leverage our services and those of our product partners. Our recommendations include only best-in-class solutions.

Our latest blogs

  • <a href="" rel="tag">Blog</a>
    November 1, 2022

    Staffing Shortage Hampering Your SIEM Deployment? It Might Be Time for Managed SIEM.

    By: Steven Rosenthal | Critical Start Director, Product Management The skills shortage in cybersecurity is still a very real problem. Despite a recent influx of 700,000 professionals into the cyber…
  • <a href="" rel="tag">Blog</a>
    September 14, 2022

    How to be a Data Security OpportuNIST: Announcing Episode 1 of the Critical Start Domain Expert Series

    It’s time to break down the barriers between data and cybersecurity professionals. Episode 1 of the Domain Expert Series will show you how to unify these roles into one shared goal of protecting yo…
  • <a href="" rel="tag">Blog</a>
    July 11, 2022

    Three Ways to Protect Student Data in the Digital Age

    Starting at the age of five and into early adulthood, students become the responsibility of educational institutions. It’s the school’s responsibility to keep students safe, meet their educat…

Acceptable risk shouldn’t be. And we can show you how.

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CRITICALSTART®, MOBILESOC®, and ZTAP® are federally registered trademarks owned by Critical Start. Critical Start also claims trademark rights in the following: Zero Trust Analytics Platform™, and Trusted Behavior Registry™. Any unauthorized use is expressly prohibited.