Every XDR incident, autonomously resolved.
Simbian AI agents natively integrate with Microsoft Defender XDR to autonomously triage, investigate, and resolve cross-domain incidents. Continuous coverage across endpoints, identity, email, and cloud — no playbooks required.
Trusted by leading enterprises and MSSPs
Automated Defender XDR Incident Triage and Response
Simbian agents consume the full Defender XDR incident graph — correlating alerts across domains and executing response actions without manual intervention.
Unified Incident Triage
Simbian ingests correlated Defender XDR incidents (not just individual alerts), preserving the cross-domain attack context Microsoft already assembled.
Cross-Domain Investigation
Autonomously pivot across endpoint, identity, email, and cloud app signals within a single Defender XDR incident to map the full attack chain.
Advanced Hunting Queries
Run KQL queries across the unified Defender data lake to uncover related activity that the built-in correlation may have missed.
Multi-Surface Containment
Isolate endpoints, disable compromised accounts, block malicious emails, and revoke OAuth app consent — all from a single incident response.
STIX-Enriched Context
Enrich every incident with STIX-formatted threat intelligence indicators and Simbian's Context Lake for organization-specific insight.
Context Lake™ Enrichment
Every XDR incident is enriched with org-specific tribal knowledge, SOPs, past investigations, and analyst feedback along with security telemetry from across your environment.
Use AI to Automate XDR Incidents
Most SOC teams spend 80% of their time on alerts that turn out to be false positives. Simbian closes them in seconds.
Book a Demo →How Simbian investigates a Defender XDR incident.
A real-world investigation, end to end. From incident to verdict in 38 seconds — every reasoning step auditable.
Four Steps to Autonomous XDR Incident Response
From connection to cross-domain containment, Simbian handles your XDR incidents end to end without playbooks or analyst queues.
Connect
Simbian connects to Microsoft Defender XDR via Microsoft Graph Security API with OAuth2 app-only permissions. No agents, no infrastructure changes.
Monitor
AI agents continuously ingest Defender XDR incidents and their correlated alert evidence — spanning endpoint, identity, email, and cloud app detections.
Investigate
For every incident, Simbian traverses the full alert graph, runs advanced hunting queries, and correlates with external threat intelligence to build a unified attack narrative.
Respond
Execute containment across all surfaces — isolate devices, disable accounts, purge malicious emails, and update incident classification — directly through Microsoft APIs.
Real Threats. Autonomous Outcomes.
See how Simbian and Microsoft Defender XDR work together to resolve multi-domain attacks that would otherwise require hours of analyst coordination.
Contain Business Email Compromise in Minutes
Defender XDR correlates a phishing email with a compromised identity and suspicious mailbox rules. Simbian autonomously disables the account, purges forwarded messages, and revokes active sessions — before data exfiltration completes.
Resolve Multi-Stage Intrusions Across Domains
When Defender XDR links an endpoint detection to lateral movement via compromised credentials, Simbian investigates all correlated alerts simultaneously, contains affected assets across surfaces, and delivers a complete timeline to your team.
Stop Malicious OAuth App Consent Grants
Defender XDR flags suspicious OAuth consent. Simbian correlates with sign-in anomalies, maps data access scope, revokes the app grant, and disables the granting account — autonomously closing the attack path.
More SIEM & XDR Integrations
Simbian connects to every major SIEM and XDR platform. Unify your detection stack under autonomous SOC operations.
Frequently Asked Questions
Yes. Simbian AI agents autonomously triage every Defender XDR incident — traversing the full alert graph across endpoints, identity, email, and cloud apps without playbooks or manual correlation. Automated alert triage operates continuously across all correlated incident types.
AI investigates every XDR incident the moment it fires, correlating signals across all domains and resolving false positives with evidence from the unified incident graph. Simbian handles up to 92% of incidents autonomously — eliminating the cross-domain alert fatigue that occurs when correlated alerts from multiple surfaces overwhelm analyst capacity.
No, for most incident types. Simbian replaces SIEM correlation rules and SOAR playbooks with AI that reasons across the full XDR incident graph. It adapts to multi-domain attacks that no static playbook can anticipate — functioning as a SOAR alternative for cross-surface incident response.
Under 15 minutes. Simbian connects via Microsoft Graph Security API with OAuth2 app-only permissions — register an app in Entra ID, grant scopes, and the autonomous SOC starts ingesting XDR incidents immediately. No custom Logic Apps or playbooks to build.
No. Simbian operates alongside Defender XDR, not instead of it. Defender XDR remains your cross-domain detection and correlation platform — Simbian adds an AI SOC analyst layer that autonomously triages, investigates, and contains multi-surface incidents. Your team retains full oversight through policy guardrails and domain-specific approval thresholds.