The rule 'Salesforce Bulk API Data Exfiltration' is designed to detect potential data exfiltration attempts through the Salesforce Bulk API by monitoring job completions for various operations that may expose large volumes of sensitive data. This detection mechanism evaluates operations based on their type (with query operations identified as a higher risk for data theft), the number of records processed, and the specific entities being accessed. The rule is particularly sensitive to large query operations where sensitive data is involved, and adjusts its severity accordingly. When triggered, the rule requires a comprehensive review of the user's actions, their expected behavior, and the context of the operation to ascertain if it poses a real threat. A detailed runbook guides analysts through the necessary steps to confirm malicious activity, including disabling API access, resetting credentials, and reviewing any accessed data. The rule is currently experimental, emphasizing its continually evolving nature in response to emerging threats in the Salesforce environment.