All news with #cisco umbrella tag
Thu, November 6, 2025
Remember, Remember: AI Agents, Threat Intel, and Phishing
🔔 This edition of the Threat Source newsletter opens with Bonfire Night and the 1605 Gunpowder Plot as a narrative hook, tracing how Guy Fawkes' image became a symbol of protest and hacktivism. It spotlights Cisco Talos research, including a new Incident Response report and a notable internal phishing case where compromised O365 accounts abused inbox rules to hide malicious activity. The newsletter also features a Tool Talk demonstrating a proof-of-concept that equips autonomous AI agents with real-time threat intelligence via LangChain, OpenAI, and the Cisco Umbrella API to improve domain trust decisions.
Thu, November 6, 2025
Equipping Autonomous AI Agents with Cyber Hygiene Practices
🔐 This post demonstrates a proof-of-concept for teaching autonomous agents internet safety by integrating real-time threat intelligence. Using LangChain with OpenAI and the Cisco Umbrella API, the example shows how an agent can extract domains and query dispositions to decide whether to connect. The agent returns clear disposition reports and abstains when no domains are present. The approach emphasizes decision-making over hardblocking.