New: Use response actions to update Zscaler policies and block threats

Red Canary and Zscaler describe recent social-engineering "spam bombing" campaigns that can yield valid credentials, and announce a new integration allowing Red Canary to trigger Zscaler Internet Access (ZIA) response actions (block IPs/domains/URLs, isolate unmanaged devices, add file hashes to sandbox denylist) to quickly enforce network-wide protections and reduce MTTR; the document is an integration/product announcement and guidance on operational benefits rather than a technical incident report.