An ISAC (Information Sharing and Analysis Center) is an industry-specific organization whose members share information about cyber threats, vulnerabilities, and incidents. ISACs exist for various sectors such as finance, healthcare, energy, and transport. Information sharing typically uses standardized formats like STIX/TAXII. For your ISMS, ISAC membership provides access to industry-relevant threat intelligence and early warnings. You benefit from the experiences of other organizations in your sector. Check whether an ISAC exists for your industry and integrate the intelligence into your monitoring and risk assessment.