Microsoft Presidio Session Replay

A cursor blinks on the screen. Every keystroke, every click, every field—you want it logged, reproduced, and audited without a gap. This is where Microsoft Presidio Session Replay comes into play.

Microsoft Presidio is known for its open-source tools that detect and anonymize sensitive data like names, phone numbers, and credit card numbers. With Session Replay, you combine Presidio’s data protection with the ability to track and reproduce user sessions in high fidelity. The result is a secure playback of exactly what happened during an interaction, without compromising privacy.

Session replay technology records user actions in real time—DOM changes, mouse movements, clicks, input text—then rebuilds them in a viewer later. Engineers use it to debug complex issues, investigate anomalies, and verify how errors occurred. Managers use it to ensure compliance and improve UX. But without robust PII detection and redaction, replays become risky assets. Presidio solves that problem.

Integrating Microsoft Presidio Session Replay means redaction happens before storage or playback. Presidio scans each data event, identifies sensitive information with natural language processing, and replaces it with harmless placeholders or masks. This allows full replay visibility of a workflow while guaranteeing compliance with GDPR, HIPAA, or internal data governance rules.

For implementation, developers run a capture script on the client side to record inputs and events, pipe the stream into a backend, and apply Presidio’s analyzers before saving. The playback viewer then loads sanitized data with exact UI rendering, so engineers see every step without risk. Presidio supports multiple recognizers for named entities, regex-based patterns, and custom rules to fit any domain. When combined with replay frameworks, this creates a transparent and forensically sound recording pipeline.

Performance matters. Session Replay must be efficient to avoid affecting page load or responsiveness. Presidio’s modular design allows asynchronous detection, selective replay, and partial redaction on-demand, letting teams fine-tune the balance between visibility and privacy.

Security matters more. Raw replay files often end up archived, shared, or embedded in reports. With built-in Presidio redaction, there’s no way for sensitive strings to leak unintentionally. Every character captured goes through the same consistent detection, so the risk profile drops sharply.

Microsoft continues to evolve Presidio with better recognizers, higher accuracy NLP models, and streamlined APIs. Pairing these updates with replay technology ensures that as capabilities grow, privacy baselines remain strong.

See Microsoft Presidio Session Replay in action without writing a line of code. Try it live at hoop.dev and capture, sanitize, and replay sessions in minutes.