SANS Stormcast Monday, April 20th, 2026: Lumma Stealer and Sectop RAT; Windows 0-Day Exploited; NIST NVD Update; FortiSandbox PoC

Lumma Stealer infection with Sectop RAT (ArechClient2) https://isc.sans.edu/diary/Lumma%20Stealer%20infection%20with%20Sectop%20RAT%20%28ArechClient2%29/32904 Three Recent Windows Defender Vulnerabilities Exploited (one 0-day)...