email-security# 3 picked talks tagged email-security, newest conference first. hack.lu 2026# MAGIC Tricks for Microsoft 365 Incident Response: Hands-on AiTM Phishing and Business Email Compromise Investigations ACM IMC 2026# Split Alignment: Diffusing SPF Vulnerabilities With DMARC USENIX Security '25 (34th USENIX Security Symposium)# S/MINE: Collecting and Analyzing S/MIME Certificates at Scale