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Are multi-layer protocols the key to safeguarding our digital world amidst the rising tide of cyberattacks? Join me, Sean Gerber, as I unravel the complexities of these protocols and their vital role in cybersecurity, drawing from the CISSP ISC² domains 4.1.4 and 4.1.5. By sharing my firsthand experiences and highlighting the alarming $22 million ransomware payout by Change Healthcare, I underscore the urgent need for redundancy in critical systems, especially within vulnerable sectors like healthcare.

Let’s decode the layers of data encapsulation, from the basic principles of TCP/IP to the robust security offered by TLS and IPsec. We'll discuss how VPN tunnels enhance security and tackle the sophisticated challenge of attackers concealing their activities within encrypted traffic. Discover methods to unmask these covert channels using decryption appliances and targeted traffic inspection, and explore the fascinating realm of steganography for data concealment.

The journey continues with a deep dive into data exfiltration techniques, including EDI communication and low-level network protocols like ICMP and DNS. Learn how malicious actors bypass detection and how network administrators can stay vigilant. Finally, I’ll share my passion for mentorship in cybersecurity, highlighting the enriching experiences and opportunities available through CISSP Cyber Training and my own platforms. Whether you’re a seasoned professional or an aspiring expert, this episode offers valuable insights and resources to bolster your cybersecurity knowledge and career.

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