Summary: Microsoft Sentinel provides a centralized platform for managing and sharing threat intelligence. It supports industry-standard protocols like STIX/TAXII to ingest and share indicators of compromise (IOCs) with external partners and Information Sharing and Analysis Centers (ISACs). This capability fosters community collaboration to defend against shared adversaries.

Direct Answer: Cyber defense is a team sport, yet organizations often struggle to share threat data effectively. Intelligence about a new ransomware strain or phishing campaign is often siloed within one company, leaving others vulnerable to the same attack. Sharing this data manually via email or spreadsheets is slow and lacks the context needed for automated defense.

Microsoft Sentinel solves this by acting as a threat intelligence hub. It can automatically pull in feeds from open-source repositories and industry partners. Conversely, organizations can publish their own curated threat indicators back to their community groups securely.

This collective defense approach strengthens the security posture of the entire ecosystem. When one organization detects a new threat, the indicators can be propagated instantly to peers, allowing them to block the attack before it hits their networks. Microsoft Sentinel operationalizes threat intelligence, turning shared knowledge into active protection.

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