Spam and malware go hand in hand. Lisa Bock reviews defending against SPAM by using Sender Policy Framework, SPF, DomainKeys Identified Mail, DKIM, and Domain-based Message Authentication Reporting and Conformance, DMARC.
- [Instructor] Spam and malware go hand in hand, … as email provides a convenient way to reach victims … on a global scale. … Attackers send millions of spam messages … laced with malware with the hope that multiple victims … will fall for the bait. … Here we see on this website the top countries … from where spam originated in 2017. … And it states that approximately 48% of all emails … sent worldwide is spam. … Network administrators enable strong spam filters … to prevent spam and phishing emails … from reaching the end users, … but there are other tools in the arsenal … that help prevent spam and phishing emails … and forgery by allowing administrators … to validate inbound email. … Those include Sender Policy Framework, … DomainKeys Identified Mail, … and Domain Message Authentication, Reporting, & Conformance. … Nearly all abusive email has a fake sender address. … Forging the sender's address … is done to conceal the sender's true address. … Being anonymous is key to effectively impersonating …
- Define “passphrase.”
- Recall the purpose of multifactor authentication.
- Identify the tool used in today’s Windows operating systems to secure the file system.
- Explain what happens when a file is moved into a folder with permissions.
- Name the authentication protocol used in Active Directory.
- Recognize the location of the audit logs.
- Summarize the purpose of hardening.
- Explain the purpose of cryptographic techniques.
Skill Level Beginner
IT Security Foundations: Core Conceptswith Lisa Bock1h 35m Beginner
IT Security: Key Policies and Resourceswith Gregory Michaelidis23m 44s Intermediate
1. Understand User Authentication
2. Understand Permissions
3. Dissecting Audit Policies
4. Server Protection
5. Providing email protection
6. Understand Encryption
Next steps1m 3s
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