Microsoft Purview Data Security Investigations (DSI) is changing the way organisations investigate data security incidents.
In this episode of the AI Governance & Data Security Show, Nikki Chapple and Ryan John Murphy are joined by Microsoft Product Manager Christophe Fiessinger to explore Microsoft Purview Data Security Investigations (DSI), a new AI-powered capability designed to help security teams investigate insider risk, data exfiltration, compromised accounts, and sensitive data exposure across Microsoft 365.
Christophe explains how DSI complements existing Microsoft Purview capabilities including Insider Risk Management, Data Loss Prevention (DLP), Microsoft Defender, Unified Audit Log, and eDiscovery. The discussion covers both reactive investigations and proactive risk hunting, helping organisations identify and mitigate data security risks before they become incidents.
In this episode, we discuss:
• What Microsoft Purview Data Security Investigations (DSI) is
• How AI-powered investigations differ from traditional content searches
• Insider risk and data exfiltration scenarios
• Investigating Microsoft 365 data at scale
• Unified Audit Log integration
• DSI versus eDiscovery
• Credential and sensitive data detection
• AI-powered semantic analysis and multilingual investigations
• Data remediation and purge capabilities
• The future roadmap for Data Security Investigations
Key Takeaway
Traditional investigations often require analysts to manually review large volumes of emails, chats, documents, and files. Data Security Investigations uses AI, embeddings, and large language models to help organisations rapidly identify risk, understand the impact of incidents, and take action across Exchange Online, SharePoint, OneDrive, Teams, and Copilot data.
Guest
Christophe Fiessinger
Product Manager, Microsoft Purview
Follow Christophe on LinkedIn:
Christophe Fiessinger
About the Show
The AI Governance & Data Security Show helps organisations securely adopt AI, protect sensitive data, govern information, and reduce risk across Microsoft 365.
Hosted by:
Topics include:
- Microsoft Purview
- AI Governance
- Data Security
- Microsoft 365 Copilot
- Insider Risk Management
- Data Loss Prevention (DLP)
- Information Protection
- Compliance and Risk Management
