Endpoint, SIEM & security operations
Security operations is the daily work of seeing and handling suspicious activity. Our team deploys endpoint protection, centralizes logs, and builds detection and response so that alerts mean something and someone acts on them.
Our team deploys endpoint protection, centralizes logs and builds detection that fits the size of the organization. We tune alerts so the useful ones stand out, write down who responds to what, and rehearse the response before it is needed. A tool that sends hundreds of unread alerts is not a control.
This work feeds the rest of the security practice. Findings from testing become detections, detections feed the executive reporting in Clayton Secure, and the evidence supports questionnaires from clients and insurers. "Cyber Insurance Readiness" lists the endpoint and logging controls underwriters ask about, and "Ransomware Readiness and Incident Response" turns the CISA guide into a checklist.
What we do
- Endpoint detection and response rollout and tuning
- Central log collection and SIEM use cases
- Vulnerability scanning with prioritized remediation lists
- Penetration tests of networks, web applications and cloud accounts
- Incident response and forensic evidence handling
- Detection rules based on real findings
- Alert triage and escalation procedures
- Executive-readable security reports
We tune tools to the environment instead of leaving defaults in place, and we test the result with offensive and defensive penetration testing using the standard professional tooling. The goal is evidence: what happened, how it was found and what was done about it.
This group is the technical side of our Cybersecurity and Pen Testing practice and of Clayton Secure. Findings from testing become detection rules, and detections become reports an executive can read.
Leading platforms we work with
- CrowdStrike
- Sophos
- Palo Alto Networks Cortex
- Tenable
- Splunk
- Microsoft Defender
- SentinelOne
- Trend Micro
- Microsoft Sentinel
- Elastic Security
- IBM QRadar
- Wazuh
- Rapid7
- Qualys
Platforms and practices
- Graylog
- Metasploit Framework
- Burp Suite
- Nmap
- Wireshark
- OWASP ZAP
- Kali Linux
- Penetration testing (offensive & defensive)
- Incident response & forensics
References
- CrowdStrike: Leader, 2025 Gartner MQ for Endpoint Protection Platforms
- Sophos: Leader, Gartner MQ for Endpoint Protection Platforms (17th consecutive report)
- Palo Alto Networks: Leader, 2025 Gartner MQ for EPP (Cortex XDR)
- Sophos: Leader, 2025 Gartner Magic Quadrant for Endpoint Protection Platforms (vendor blog; report dated July 14, 2025)
- Splunk: Leader, 2025 Gartner Magic Quadrant for SIEM (vendor page)
- Microsoft: Leader, Gartner Magic Quadrant for Endpoint Protection (Microsoft Security blog, analyst reports)
- SentinelOne: Leader, 2025 Gartner MQ for Endpoint Protection Platforms, 5th consecutive year (vendor release, Jul 15, 2025)
- CrowdStrike: Leader, 2025 Gartner MQ for Endpoint Protection Platforms, 6th consecutive time (vendor release, Jul 16, 2025)
Sources last checked .
Product names are trademarks of their owners and are listed to describe our experience; they do not imply endorsement or partnership.
How we use Endpoint, SIEM & security operations for clients
Frequently asked questions
Direct answers to the questions we hear most. Something else on your mind?
Send us a messageCan you manage our existing endpoint protection, such as CrowdStrike or Microsoft Defender?
Yes, we have experience with both and with others listed on this page. We deploy, tune and monitor your current product where it fits, and we say so if it does not. Names are trademarks of their owners and appear as experience, not partnership.
Do you monitor alerts around the clock?
Alert handling depends on the service agreed with you. Ask us for the current coverage hours for your plan before signing. Paying clients get a 15-minute response.
What is the difference between antivirus, EDR and a SIEM?
Antivirus blocks known malicious files. Endpoint detection and response records what happens on a device, such as processes, connections and registry changes, and can isolate it. A SIEM collects logs from many sources and correlates them, so a login from an unusual country followed by a mailbox rule can be seen as one event.
What logs should we collect first?
Identity sign-ins and administrative changes, then email, firewall and VPN logs, then endpoint events and critical servers. Start with sources that show someone getting in or changing access, because those are the ones an investigation needs most. Retention matters as much as collection: logs deleted after a few days cannot explain an incident discovered weeks later.
How do you reduce alert noise?
We tune each rule against your normal activity, suppress known-good sources, group related alerts, and give every remaining alert an owner and a response. Rules are built from real findings, such as results of a penetration test, instead of vendor defaults alone. An alert nobody acts on is removed or fixed.
What should we do first if we suspect a compromise?
Isolate the affected devices from the network without powering them off, preserve logs and evidence, reset exposed credentials, and call your incident response contact. Powering off or reimaging early destroys evidence that explains how the attacker got in. A written, rehearsed response plan makes these steps routine.
Do you test our defenses as well as monitor them?
Yes. Penetration tests of networks, web applications and cloud accounts show what an attacker could reach, and the findings become detection rules. A scan lists known weaknesses automatically, while a test chains them the way a person would.