Your email gateway may be airtight, yet a malicious link can still land on a clinician's calendar and outlive every deleted message. Health-ISAC explains the technique slipping past MFA and what stops it before credentials walk out the door.
Source: H-ISAC Flags CalPhishing Threat Exploiting Calendar Auto-Processing to Harvest Login Credentials on healthsystemcio.com - Interviews & Webinars with Health System IT Leaders
