Managed Detection & Response (MDR)
24/7 SOC coverage built on AWS GuardDuty, Security Hub, and your existing observability stack -- median dwell time under 4 hours, full IR playbooks ready on day one.
Always-On Threat Detection and Response
MDR at Jacobian is a SOC-as-a-service built into your existing infrastructure rather than bolted on through a separate vendor portal. We deploy AWS GuardDuty for cloud-trail anomaly detection, Security Hub for unified findings aggregation, Inspector for vulnerability scanning, and a SIEM (Splunk, Datadog Cloud SIEM, or Elastic) tuned to your specific application telemetry. Detection rules are written and reviewed by SREs who already know your codebase, not by a generic SOC analyst reading runbooks for the first time during an incident.
Response is wired into the same PagerDuty rotation that handles your reliability incidents -- one on-call rotation, two skill sets. Median dwell time (initial detection to containment) sits under 4 hours across recent engagements, with sev-1 detections acknowledged in under 5 minutes. Full incident response playbooks are written before the engagement starts: AWS account isolation, IAM credential rotation, EDR endpoint isolation through CrowdStrike or SentinelOne, and forensic timeline reconstruction from CloudTrail, VPC Flow Logs, and application audit logs.
Threat hunting runs on a quarterly cadence using MITRE ATT&CK as the framework. We hypothesize-test against your threat model, validate detection coverage gaps, and tune rules. Because Jacobian's roots are in audit and compliance work, every detection event is captured as evidence in the SOC 2 control library -- the auditor doesn't need a separate evidence package for monitoring.
Why Choose Our Managed Detection & Response (MDR)
Engineering rigor, audit-ready process, and operational depth across cloud, SaaS, and software delivery
24/7 Detection
GuardDuty, Security Hub, and SIEM rules tuned to your application stack. Median dwell time under 4 hours, sev-1 acknowledgement under 5 minutes via PagerDuty.
Integrated Incident Response
Response playbooks pre-written for AWS account isolation, IAM rotation, EDR endpoint quarantine, and forensic timeline reconstruction. Wired into your existing PagerDuty rotation.
Threat Hunting
Quarterly hypothesis-driven hunts against MITRE ATT&CK with documented coverage analysis and detection-rule tuning. No black-box vendor SOC.
Audit-Ready Evidence
Every detection event lands in the SOC 2 / HIPAA evidence library automatically. SIEM logs retained per regulatory requirement (1+ year HIPAA, 12 months SOC 2 minimum).
Our MDR Onboarding Process
From kickoff to 24/7 coverage in 30 days
Threat Model & Coverage Assessment
Two-week assessment of your AWS account, application telemetry, EDR coverage, and existing detection capabilities. Output: a threat model mapped to MITRE ATT&CK with gap analysis.
SIEM & EDR Deployment
Days 8-21: deploy or tune your SIEM (Datadog Cloud SIEM, Splunk, or Elastic), GuardDuty, Security Hub, Inspector. Connect EDR (CrowdStrike, SentinelOne, or Defender). Wire alerts into PagerDuty.
Detection Rule Library
Days 14-30: write and tune detection rules specific to your stack. Test through purple-team exercises before going live. Document each rule's MITRE technique mapping and expected false-positive rate.
24/7 Operations
Day 30+: full coverage live. Monthly tuning reviews, quarterly threat hunts, semi-annual purple-team exercises with your engineering team. SOC 2 evidence package generated automatically.
Threat Model & Coverage Assessment
Two-week assessment of your AWS account, application telemetry, EDR coverage, and existing detection capabilities. Output: a threat model mapped to MITRE ATT&CK with gap analysis.
SIEM & EDR Deployment
Days 8-21: deploy or tune your SIEM (Datadog Cloud SIEM, Splunk, or Elastic), GuardDuty, Security Hub, Inspector. Connect EDR (CrowdStrike, SentinelOne, or Defender). Wire alerts into PagerDuty.
Detection Rule Library
Days 14-30: write and tune detection rules specific to your stack. Test through purple-team exercises before going live. Document each rule's MITRE technique mapping and expected false-positive rate.
24/7 Operations
Day 30+: full coverage live. Monthly tuning reviews, quarterly threat hunts, semi-annual purple-team exercises with your engineering team. SOC 2 evidence package generated automatically.
DIY SOC vs. Jacobian MDR
Why integrated MDR beats a separate SOC vendor
| Feature | DIY SOC or Generic MDR Vendor | Jacobian MDR |
|---|---|---|
| Detection Tuning | Generic rules tuned by analysts who don't know your stack | Rules written by SREs who already operate your infrastructure |
| Response Integration | Separate vendor portal, separate on-call rotation, two-step escalation | Wired into your existing PagerDuty rotation; one team owns it |
| Incident Containment | Vendor opens a ticket, your team executes containment | Pre-written playbooks executed by us, you ratify the action |
| Audit Evidence | Separate vendor evidence pack, manual reconciliation with SOC 2 controls | Detection events feed directly into SOC 2 / HIPAA control library |
| Threat Hunting | Optional add-on, often skipped | Quarterly hypothesis-driven hunts mapped to MITRE ATT&CK |
Detection Tuning
Response Integration
Incident Containment
Audit Evidence
Threat Hunting
MDR Operations Playbook for SaaS
Read our MDR operations playbook -- SOC integration, MITRE ATT&CK coverage, SIEM/EDR tooling, and continuous monitoring evidence that doubles as compliance evidence.
Read the whitepaperMDR FAQs
What CISOs and security leads ask before engaging us
Related Services
Buyers of managed detection & response (mdr) typically partner with us across these adjacent disciplines
24/7 Monitoring & Support
MDR shares the same on-call rotation as application reliability monitoring -- one team, two skill sets, lower handoff cost.
Penetration Testing
Pen-test findings inform detection rule design; MDR detects attacks the pen-test discovered are possible.
Compliance Management
Detection events feed directly into the SOC 2 / HIPAA / ISO 27001 evidence library -- monitoring as compliance, not separate from it.
Ready for 24/7 Threat Detection?
Schedule a threat-model assessment and MDR readiness review.