Microsoft PurviewvsHiddenLayer

Pricing Intelligence

Microsoft Purview Plans

Paid plans only

Included in M365 E3

Custom

• • Basic DLP
• • Sensitivity labels
• • Audit logs

M365 E5 Compliance

$12/user/mo

• • Advanced DLP
• • Insider risk
• • Communication compliance

StandaloneBest Value

$2/user/mo

• • Data catalog
• • Information protection
• • Compliance manager

Full Microsoft Purview Pricing Breakdown →

HiddenLayer Plans

Paid plans only

Enterprise

Custom

• • Model scanning
• • Runtime protection
• • Adversarial attack detection

Full HiddenLayer Pricing Breakdown →

Feature Matrix

5 differences found across 10 standardized features

Pros & Cons Face-Off

Evaluative strengths and weaknesses — not feature lists

Microsoft Purview

Pros

• +Best integrated option for Microsoft 365 organizations
• +AI Hub specifically addresses Copilot and GenAI governance
• +Strong DLP and insider risk management
• +Comprehensive eDiscovery and compliance tools

Cons

• −Tightly coupled to Microsoft ecosystem
• −Complex licensing across E3/E5 and standalone tiers

HiddenLayer

Pros

• +Unique focus on ML model-level security (weights, pipelines)
• +Detects adversarial attacks at inference time
• +Supply chain security for ML models
• +Fills a gap most AI security tools ignore

Cons

• −Very specialized — not a general LLM security tool
• −Early stage with limited public case studies

Frequently Asked Questions