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What is Quest Identity Defense?

Quest Identity Defense, formerly called Security Guardian, is an agentic AI-powered identity threat detection and security platform for hybrid Active Directory and Microsoft Entra ID environments. It provides continuous visibility and observability across both human and non-human identities to help organizations identify and investigate identity-related security risks. The platform detects Tier 0 exposures, privileged attack paths, risky configurations, anomalous activity, and vulnerabilities associated with workload and other non-human identities. Identity posture management benchmarks Active Directory and Entra ID configurations against industry best practices and provides remediation guidance for identified vulnerabilities and compromises. Proactive object protection is designed to prevent unauthorized or dangerous changes to critical Tier 0 objects before those changes result in compromise. During an active incident, Shields Up and agentic AI defense capabilities can automatically freeze vulnerable users or objects, stop attacks in progress, and limit lateral movement through the environment. Deep monitoring and auditing provide human-readable records showing who performed a change, what was modified, when and where the event occurred, and which workstation was involved. Integrated AI analyzes identity telemetry and converts it into security insights and remediation recommendations that can help security teams reduce investigation and response time. Quest states that Identity Defense can improve mean time to respond by 44% by helping teams reduce alert fatigue and move more quickly from detection to investigation and containment. The platform includes a flexible API for extending identity security data into existing security ecosystems and custom workflows, while its auditing capabilities can also help organizations improve compliance readiness.

What is CyberArk Machine Identity Security?

CyberArk Machine Identity Security is an industry-leading platform designed to protect all machine and non-human identities critical to modern digital infrastructures, including secrets, certificates, workload identities, and SSH keys. It offers centralized visibility, enabling organizations to maintain full awareness of machine identities across data centers, cloud, and hybrid environments through a single consolidated platform. The solution incorporates advanced automation to efficiently manage the entire machine identity lifecycle, from discovery and issuance to renewal and revocation, reducing risks associated with human error and manual processes. CyberArk’s full-spectrum protection includes just-in-time privilege management, certificate lifecycle automation, and governance features that ensure operational continuity and compliance. As organizations face increasingly complex architectures and emerging technologies like agentic AI and quantum computing, CyberArk equips them to stay future-ready by adapting policies and controls to evolving security landscapes. Trusted by major enterprises such as Bank of America and Cisco, CyberArk enables scalable, resilient, and secure management of machine identities, helping businesses avoid outages, prevent breaches, and accelerate digital transformation initiatives.

Media

Media

Integrations Supported

Google Chrome
Microsoft 365
Microsoft Azure
Microsoft Edge
Microsoft Entra ID
Mozilla Firefox
PowerShell
Quest Change Auditor

Integrations Supported

A10 Defend DDoS Mitigator
Axiad Cloud
Certificate Authority Service
Check Point IPS
Check Point Infinity
Entrust Identity Enterprise
Entrust Identity Essentials
GigaSECURE
KeyScaler
Multi-Domain Security Management
Optiv Managed XDR
n8n

API Availability

API Availability

Has API

Pricing Information

Pricing not provided
Free Trial Offered?

Pricing Information

Pricing not provided

Supported Platforms

SaaS
Windows
Linux

Supported Platforms

SaaS

Customer Service / Support

Standard Support
Web-Based Support

Customer Service / Support

24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Webinars

Company Facts

Organization Name

Quest Software

Date Founded

1987

Company Location

United States

Company Website

www.quest.com/products/identity-defense

Company Facts

Organization Name

CyberArk

Date Founded

1999

Company Location

United States

Company Website

www.cyberark.com/products/machine-identity-security/

Categories and Features

Digital Forensics

Not specified

Categories and Features

Container Security

Not specified

DevSecOps

Not specified

Encryption

Central Policy Enforcement
Encryption Key Management
File Encryption
Public Key Cryptography
Tokenization / Data Masking

Key Tracking

Not specified

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