DKIM
TL;DR: Imagine sending a letter through the mail. You want to make sure that the letter is really from you and hasn't been tampered with. DKIM (DomainKeys Identified Mail) is...
DMARC
TL;DR: Imagine you run a business and want to ensure that all the letters you send are trusted and not tampered with. DMARC (Domain-based Message Authentication, Reporting, and...
Spear Phishing
TL;DR: Spear phishing is like a con artist who has done their homework on you. Imagine receiving an email that looks like it's from your boss, asking for sensitive information or...
SPF
TL;DR: Sender Policy Framework (SPF) is like a bouncer at a club, checking IDs to make sure only authorized people get in. When an email is sent, SPF allows the receiving mail...