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VPNs and encryption: what type of encryption do they use and how secure are they?
Not all VPNs encrypt the same. Discover the protocols and security levels behind your private connection.
V1TR0
5 de noviembre de 2025
1 min de lectura
#VPN
#vpn encryption
#WireGuard
#OpenVPN
VPNs and encryption: what type of encryption do they use and how secure are they?
Summary
VPNs encrypt your traffic with modern algorithms (AES, ChaCha20) and protocols such as OpenVPN, WireGuard or IKEv2/IPSec. Actual security depends on the vendor's implementation and policies.
Introduction
VPNs encrypt your internet connection traffic, but not all do it in the same way. It is vital to understand what technologies they use.
Common protocols
- OpenVPN: Use TLS with AES or ChaCha20.
- WireGuard: modern, fast and with Curve25519 encryption.
- IKEv2/IPSec: popular on mobiles.
Security comparison
| Protocol | Security | Speed |
|---|---|---|
| OpenVPN | High | Medium |
| WireGuard | Very high | High |
| IKEv2/IPSec | High | High |
Recommendations
- Use VPNs with clear no-logging policies.
- Check if the software is open source.
- Prefer WireGuard for speed and efficiency.
Conclusions
A good VPN not only hides your IP, it should also offer strong encryption. Choosing well means protecting your data.
