The April 12, 2026 threat landscape is dominated by two converging attack patterns: software supply chain compromise targeting developer and CI/CD tooling (Trivy, Axios, LiteLLM), and credential-harvesting exploitation of developer and data science platforms (Marimo CVE-2026-39987, Axios CVE-2026-40175). A third, lower-urgency stream involves client-side exploitation of ubiquitous enterprise document software (Adobe Acrobat CVE-2026-34621), actively exploited since December 2025. Immediate attention is required for any organization that ingested Axios, Trivy, or LiteLLM packages during March 2026, or operates an internet-facing Marimo instance; treat pipeline secrets and cloud credentials as compromised and rotate now. The GPUBreach research item (hardware Rowhammer on GDDR6) requires architecture review and threat model updates but does not yet meet the threshold for immediate operational response pending vendor confirmation.