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Managed Detection & Response

Your EDR Missed It.
Guardian MxDR Won't.

Managed detection and response built on the Microsoft Defender stack. ABT monitors your Microsoft 365 environment around the clock, investigates anomalies, and responds before damage spreads.

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Real-Time Threat Coverage

Identity attacks, email threats, configuration drift, sign-in anomalies, data exfiltration, and device compliance. All monitored from one control plane.

24/7Monitoring
6Threat Areas
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Trusted by 750+ of the Nation's Leading
Lenders, Banks & Credit Unions.

TIER 1 MICROSOFT CSP
SOC 2 TYPE II
ZERO TRUST
NIST CSF ALIGNED
FFIEC
GLBA / FTC SAFEGUARDS
NCUA / FDIC
CFPB / GSE AUDIT READY
SOX COMPLIANT
750+ INSTITUTIONS
SINCE 1999
24/7
Continuous Monitoring
ABT engineers monitor alerts from Microsoft Defender, Entra ID, and Purview around the clock
750+
Financial Institutions
Credit unions, community banks, and mortgage companies protected by ABT over 25 years
93%
Avg Secure Score
ABT clients average 93% Microsoft Secure Score after Guardian hardening, up from 30-40%
What MxDR Monitors

Six Threat Categories, One Control Plane

Guardian MxDR covers the full Microsoft 365 attack surface. Every alert feeds into a single monitoring pipeline managed by ABT engineers who understand your environment.

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Identity Attacks

Brute force, credential stuffing, token theft, and privilege escalation attempts detected through Entra ID Protection and Conditional Access signals.

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Email Threats

Phishing campaigns, business email compromise, malware attachments, and impersonation attempts monitored through Defender for Office 365.

Configuration Drift

Conditional Access policy changes, MFA disablement, sharing permission changes, and DLP policy modifications that weaken your security posture.

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Sign-in Anomalies

Impossible travel, risky sign-ins from unknown locations, legacy authentication attempts, and suspicious activity patterns in Entra ID logs.

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Data Exfiltration

External sharing spikes, DLP policy violations, large file downloads, and unauthorized data movement tracked through Purview and SharePoint audit logs.

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Device Compliance

Intune compliance failures, unmanaged device access attempts, OS patch status, and endpoint health signals that indicate compromised or at-risk devices.

How We Respond

Detect, Investigate, Respond

When MxDR identifies a threat, ABT engineers follow a structured response process. No ticket queues. No waiting for business hours. Real people who know your environment.

1

Detect

Automated monitoring surfaces anomalies across all six threat categories.

  • Defender alert correlation
  • Entra ID sign-in analysis
  • Configuration change tracking
  • Cross-tenant threat intelligence
2

Investigate

ABT engineers assess severity, trace the attack path, and determine scope.

  • Root cause analysis
  • Affected account identification
  • Lateral movement assessment
  • Data exposure evaluation
3

Respond

Containment, remediation, and hardening to prevent recurrence.

  • Account isolation and password reset
  • Conditional Access policy tightening
  • Configuration restoration
  • Post-incident documentation

The EDR Didn't See It. The Antivirus Didn't See It.

Attackers use legitimate Microsoft tools to move laterally, escalate privileges, and wipe environments. MxDR watches the control plane where those attacks happen.

Microsoft-Native Security

Built on the Stack You Already Own

Guardian MxDR uses the Microsoft Defender suite, Entra ID, Purview, and Intune that your Microsoft 365 licenses already include. No additional agents. No third-party overlays.

  • Microsoft Defender for Office 365 monitors email threats, phishing, and business email compromise
  • Entra ID Protection detects identity-based attacks, leaked credentials, and risky sign-ins
  • Microsoft Purview tracks data movement, DLP violations, and audit trails
  • Intune enforces device compliance and reports endpoint health
  • Conditional Access policies control who can access what from where
  • ABT manages all of it so your team can focus on serving members and clients
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Common Questions

Guardian MxDR FAQ

Guardian MxDR is the managed detection and response component of ABT's Guardian operating model. It covers continuous monitoring of Microsoft Defender alerts, Entra ID sign-in anomalies, configuration drift, email threats, data exfiltration signals, and device compliance. When a threat is detected, ABT engineers investigate, contain, and remediate without waiting for a support ticket.
Traditional EDR watches endpoints for malware and suspicious processes. MxDR watches the entire Microsoft 365 control plane, including identity, email, data movement, and configuration changes. Attackers increasingly use legitimate admin tools and stolen credentials rather than malware, which means EDR alone misses identity-based attacks, configuration manipulation, and data exfiltration through authorized channels.
MxDR monitors six threat categories: identity attacks such as credential stuffing and token theft, email threats including phishing and business email compromise, configuration drift when security policies are weakened, sign-in anomalies like impossible travel and risky locations, data exfiltration through external sharing and DLP violations, and device compliance failures from unmanaged or non-compliant endpoints.
No. Guardian MxDR is built entirely on the Microsoft security stack that your Microsoft 365 Business Premium or E5 licenses already include. ABT connects to Microsoft Defender, Entra ID, Purview, and Intune through Azure automation. There are no agents to install, no third-party overlays, and no additional license costs beyond your existing Microsoft subscriptions.
MxDR handles real-time detection and response while Security Insights provides monthly trend reporting. MxDR generates incident reports when threats are detected and resolved. Security Insights aggregates those incidents alongside Secure Score trends, MFA coverage, and compliance posture into a monthly report your examiner can review. Together they give your institution both immediate protection and continuous documentation.
Talk to an Expert

See What Your Environment Looks Like to an Attacker

ABT's threat assessment reviews your Microsoft 365 tenant for identity gaps, email exposure, configuration weaknesses, and data movement risks. You get a clear picture of where you stand and what needs to happen next.

Our team has protected over 750 financial institutions across 25 years. We know what examiners look for, what attackers target, and how to close the gap between the two.

Our Offices

Irvine, CA (HQ) 17901 Von Karman Ave
Suite 600, Irvine, CA 92614
Dallas, TX 5001 Spring Valley Rd
Suite 200E, Dallas, TX 75244
Request a Threat Assessment

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Assessment Request Received

An ABT security engineer will contact you within one business day to schedule your threat assessment.