🛡️ **MASS EXPLOITATION OF ON-PREMISES EXCHANGE SERVERS — IMMEDIATE ACTION REQUIRED**
Published Saturday, July 04, 2026 at 01:05 AM PT BLUF: Multiple on-premises Microsoft Exchange servers are being actively exploited in coordinated attacks. Organizations running Exchange Server must immediately verify patch status and monitor for unauthorized access. Huntress MDR has detected and is responding to active exploitation campaigns. DETAILS: Active exploitation targeting on-premises Exchange Server infrastructure confirmed across multiple customer environments Attack pattern indicates coordinated, widespread campaign rather than isolated incidents Huntress threat hunting and rapid response teams are actively engaged in incident response operations Initial access vectors and specific CVEs involved: details limited pending full technical analysis Timeline suggests ongoing exploitation activity with continued threat actor activity IMPACT: ...