CMDR and Ransomware Protection

Managed EDR powered by SentinelOne and Halcyon ransomware protection, watched and acted on 24/7 by Core-Infosec’s own analysts. One service to prevent, detect, respond and recover.

Two specialist technologies, one managed service

Endpoint detection and response and dedicated anti-ransomware protection solve different parts of the problem. We deploy both, tune them to your environment and put an analyst team behind them, so alerts become decisions and actions.

Managed EDR powered by SentinelOne

Singularity Endpoint uses behavioral AI to detect suspicious activity on devices and servers, with automated response options and a rollback capability that SentinelOne documents for undoing unauthorized changes on endpoints. Core-Infosec runs it for you: policies, triage, response and tuning.

Ransomware protection from Halcyon

Halcyon is a dedicated ransomware defense layer. It is documented to act from before execution through data exfiltration to encryption, using behavioral AI/ML, and to guard your endpoint tooling from tampering. We deploy and manage it alongside your EDR.

Prevent, detect, respond, recover

  • Prevent. Halcyon’s behavioral approach is aimed at stopping ransomware activity, including encryption and data theft for double extortion, and SentinelOne’s behavioral AI is designed to stop malicious activity before it spreads.
  • Detect. SentinelOne monitors endpoint behavior continuously. Our analysts review what it raises and separate real threats from noise.
  • Respond. When a threat is confirmed we contain it, for example by isolating a device or stopping a malicious process, using actions we agree with you in advance.
  • Recover. SentinelOne documents rollback of unauthorized endpoint changes. Halcyon documents capture of the keys and data used in a ransomware attack, with decryption support in some cases, depending on the attack and your environment. If an event grows, our incident responders are already familiar with your setup.

Why both

Halcyon states that it supplements existing EDR with dedicated anti-ransomware protection, and that is how we use it. Two independent layers mean one does not have to be perfect: ransomware that slips past one meets the other, and tampering with the endpoint agent is itself something to detect.

What you get

  • 24/7 monitoring and response by Core-Infosec’s own analysts, including nights, weekends and holidays, not a reseller queue.
  • Onboarding. Deploy and baseline, tune and harden, then review and improve.
  • Reporting. Regular reports on detections, actions taken and coverage.
  • Incident response escalation. A serious detection can move straight into incident response without a handover.
  • Data exfiltration protection. Halcyon data exfiltration protection is part of the service and targets data theft and double extortion.

Beyond the endpoint

CMDR can also include the layers around the endpoint: email threat protection, SIEM and log management, security awareness and phishing training, vulnerability management and patching, and a password manager. Start with the endpoint and add layers when you are ready. See also managed email security and vulnerability management.

Backed by incident response experience

Core-Infosec investigates Microsoft 365 and business email compromise, ransomware and data theft. That experience shapes what CMDR watches for and how we respond. See Incident Response Services. Our team has delivered hundreds of assessments, has worked with large enterprises including Fortune 50 organizations, and has experience with HIPAA, FISMA and ISO frameworks and with nation-state and APT-level threat actors.

What we need from you

A current list of devices and servers, an administrator contact who can approve the rollout, and a named person we can reach when a decision is needed, such as taking a server offline.

Who it fits

Small and mid-size organizations that want one accountable security partner instead of several separate vendors, and IT firms and MSPs that need a security bench.

Get in touch

Prefer to write? Email info@core-infosec.com or use the contact form. We reply to form and email enquiries by the next business day. Ask us about incident response retainers as well.

Coverage depends on the services selected and your environment. Vendor capabilities are as described publicly by SentinelOne and Halcyon, and results depend on the threat and the deployment.