A. Configure XSIAM to regularly pull CSV and JSON feeds via SFTP, then manually upload STIX/TAXII files. Use XSIAM's 'Indicator' object for storage, and playbooks for enrichment.

B. Utilize XSIAM's built-in threat intelligence connectors for common TIPs. For custom or proprietary feeds, develop custom XSIAM content packs that use XSIAM's Data Ingest APIs or pull via Python scripts within playbooks for parsing and populating XSIAM's Indicator objects and internal block lists.

C. Forward all threat intelligence data to an intermediate SIEM, then configure the SIEM to send filtered IOCs to XSIAM via syslog for indicator creation.

D. Subscribe XSIAM directly to all STIX/TAXII servers. For CSV/JSON feeds, create custom XSIAM Correlation Rules to parse and extract IOCs from other ingested logs.

E. Implement a custom external script to consolidate all threat intelligence feeds into a single CSV file, then import this file daily into XSIAM's Data Lake for analysis.