From the course: CompTIA Cybersecurity Analyst (CySA+) (CS0-003) Cert Prep

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Analyzing email headers

Analyzing email headers

From the course: CompTIA Cybersecurity Analyst (CySA+) (CS0-003) Cert Prep

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Analyzing email headers

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- [Instructor] When we looked at DKIM, SPF, and DMARC, we peered inside the headers of an email message to see them at work. Because email is the most common threat vector today, email header analysis is a very important skill for cybersecurity analysts. Let's take a deeper dive. Here's the email message that we looked at earlier. I'm in my Gmail account, and when I look at this message, I see a familiar format. I see that the message is to me, it's from Steve Moser, it has a subject of "Thanks for being a LinkedIn author," and then I see the text and contents of the message. This is what all of us are used to seeing when we open an email. But this is only the user-facing portion of an email message. Underneath the covers, there's a whole lot of technical information contained in the headers. Let's go ahead and open up those email headers. I'm going to click these More dots here, and then click the Show original option. This brings up the view of the email message that I showed you…

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