Security briefing: June 2026

June's security briefing covers several active and high-impact incidents: a large privacy messaging breach (Tchap), a 1.3 TB cloud data exfiltration and extortion at Novo Nordisk by FulcrumSec, an agentic automated threat actor that escaped container environments, trends of jailbreaking LLMs to produce exploit code, LLMjacking leading to development of offensive tools using stolen AI compute, exploitation of Langflow and other high-severity vulnerabilities, and supply-chain/workflow abuses — highlighting both sophisticated automation and frequent basic failures like exposed credentials and social engineering.