How do you evaluate EDR solutions? Ten questions to ask

To evaluate EDR solutions, test them against your own environment and your own questions: what telemetry they record, how long they keep it, which response actions they allow, how detections map to known techniques, and who will act on alerts. A demo proves little. A two-week pilot proves a lot.

This is a method for comparing options, not a ranking of any product.

What is the baseline requirement?

Start from the definition. OMB memorandum M-22-01 describes EDR as combining real-time continuous monitoring and collection of endpoint data with rules-based automated response and analysis. Each part of that sentence becomes a test: monitoring, collection, rules, response, analysis.

The same memo tells federal agencies to confirm that the data they gather comes from the widest number of endpoints, and to set up performance monitoring so EDR is deployed and operating in a way that detects and responds to common threats. Both ideas apply to private organizations: coverage and proof of function.

Which ten questions should you ask?

1. Which operating systems and device types are supported, including servers, older versions and Linux?
2. What events are recorded, such as process, file, network, login and script activity? Can you see raw events, or only alerts?
3. How long is data kept, and where? Can you search it yourself?
4. Which response actions exist: isolate a host, stop a process, remove a file, collect a memory or file sample? Can they be automated and can they be limited by role?
5. How do detections map to MITRE ATT&CK tactics and techniques, and can you see which ones are covered?
6. How does the product behave offline, and how does it resist being switched off by an attacker with admin rights?
7. What is the performance cost on old laptops and busy servers?
8. How are false positives tuned, and who owns tuning?
9. What integrations exist with your ticketing, identity and logging systems? Can you export data in open formats?
10. Who monitors alerts after hours, and is that you, the vendor or a partner?

How do you test it yourself?

Build a short pilot on a mix of real devices, not on a lab full of fresh images. Include one old laptop, one server and one device used by someone who installs odd tools, such as a developer.

Then run safe, well-known adversary techniques and watch what happens. MITRE ATT&CK, which now lists fifteen enterprise tactics from Reconnaissance to Impact, gives you a shared vocabulary for choosing tests. Pick a handful across execution, persistence, credential access and lateral movement. For each, record whether it was blocked, detected, merely logged or missed, and how long the alert took to arrive.

A constructed example. A 300-person company pilots two products on 20 devices each for two weeks. Product A raises many alerts but offers only a summary of each. Product B raises fewer, with a full process tree and a one-click isolate. The team's measure is time from test action to isolated device: eleven minutes with one, three with the other. The numbers decide, not the brochure.

What are the traps?

Counting features. A long list means little if you will not run half of them.

Ignoring staffing. If nobody can respond at night, a managed monitoring service or on-call rota may matter more than any product feature.

Skipping exit planning. Ask how you would export data and remove agents if you switch. A tool that is hard to leave gets renewed by default.

Trusting a single score. Public test results exist, but they test particular scenarios in a particular setup. Read what was tested before relying on them.

How to check or apply this

1. Write your requirements from your threats and your staffing, not from a vendor's list.
2. Shortlist options and send each the ten questions in writing.
3. Run a time-boxed pilot on a representative device mix.
4. Test with safe techniques mapped to ATT&CK and record results the same way for every option.
5. Measure performance, false positives and analyst time.
6. Check the exit path and data export.
7. Decide with the people who will operate the tool.

Quick check

Sources

• OMB M-22-01: Improving Detection of Cybersecurity Vulnerabilities and Incidents on Federal Government Systems through Endpoint Detection and Response
• MITRE ATT&CK Enterprise Matrix
• NIST SP 800-61 Rev. 3: Incident Response Recommendations

Last reviewed: 18 October 2026.