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Email Security Basics

Your first lesson in digital defense. This section introduces the "big three" authentication standards—SPF, DKIM, and DMARC—and explains why they are the essential "flags and seals" that prove your email isn't a forgery.

14 questions in this topic

Questions about Email Security Basics

What is spam filtering (high-level)? What is authentication (overview)? What is encryption in transit? What is encryption at rest? What is PGP? What is S/MIME? What is a digital signature? What is phishing detection? What is a virus scanner in email gateways? What is malware filtering? What is spoofing? What is spear phishing? What is brand impersonation? What is credential harvesting?