This article explains what a VPN is, why it exists, and why using one does not automatically make you safe, especially when trust is shifted from an ISP to a VPN provider. It also breaks down core VPN components and compares key protocols like PPTP, L2TP, and IPsec for cybersecurity professionals and certification study. #PPTP #L2TP #IPsec
Keypoints
- A VPN creates an encrypted tunnel over untrusted networks.
- It provides confidentiality, authentication, and integrity.
- Using a VPN moves trust to the VPN provider.
- PPTP is obsolete, weak, and should not be used.
- L2TP needs IPsec, and IPsec is the key protocol suite to understand.
Read More: https://www.decodedsecurity.com/p/this-is-how-i-explain-vpns-to-beginners