Hallmark is a organization tracked across 2 threat clusters and 4 intelligence report mentions on ThreatCluster. First observed April 14, 2026; most recent activity April 16, 2026.
A recent study identified 28 malicious LLM proxy routers that can modify AI service responses and access sensitive credentials. The research tested 28 paid routers and 400 free routers, revealing that nine injected…
The ShinyHunters extortion gang has claimed responsibility for a series of voice phishing attacks targeting single sign-on (SSO) accounts at major platforms including Okta, Microsoft, and Google. In these attacks,…