Proofpoint Troubleshooting

Investigating a M365 Mailbox Breach
Only start this once containment is complete (password reset, sessions revoked, MFA verified, inbox rules removed). Investigating while the attacker still h...
Wed, Apr 1, 2026 at 10:47 AM
Understanding Proofpoint URL Defense (URL Rewriting)
What is URL Defense? URL Defense is a security feature built into Proofpoint Essentials that protects you from malicious links in emails. When an email pas...
Wed, Apr 1, 2026 at 11:29 AM