Fidelis Security vs Perpetual Systems Detection & Response: Side-by-Side Comparison (2026)

Fidelis Security: XDR platform with NDR, EDR, deception, AD security, and CNAPP capabilities. built by Fidelis Security. Core capabilities include Forensic and metadata collection from 300+ attributes, Threat detection with MITRE ATT&CK mappings, Deep Session Inspection technology..

Perpetual Systems Detection & Response: AI-native D&R platform with agentic investigation, detection engineering & tuning. built by Perpetual Systems. Core capabilities include Agentic AI investigation with hypothesis-driven reasoning, Fully transparent, append-only case audit trail including LLM call inspection, Analyst chat interface for on-demand investigation within case context..

Both serve the Extended Detection and Response market but differ in approach, feature depth, and target audience.

Fidelis Security differentiates with Forensic and metadata collection from 300+ attributes, Threat detection with MITRE ATT&CK mappings, Deep Session Inspection technology. Perpetual Systems Detection & Response differentiates with Agentic AI investigation with hypothesis-driven reasoning, Fully transparent, append-only case audit trail including LLM call inspection, Analyst chat interface for on-demand investigation within case context.

Fidelis Security is developed by Fidelis Security. Perpetual Systems Detection & Response is developed by Perpetual Systems. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

Fidelis Security integrates with Forescout, Devo, AWS, Microsoft Azure, SentinelOne. Perpetual Systems Detection & Response integrates with Sysmon. Check integration compatibility with your existing security stack before deciding.

Fidelis Security and Perpetual Systems Detection & Response serve similar Extended Detection and Response use cases: both are Extended Detection and Response tools, both cover MITRE Attack. Review the feature comparison above to determine which fits your requirements.