Well, based on a number of emails I have received, some people were quite surprised to learn in my first blog post that poorly designed and configured IPsec VPNs are vulnerable not only to the NSA and ...

IPsec post-quantum downgrade attacks remain possible even after organizations deploy ML-KEM key exchange. Cloudflare shipped ...

I'm trying to understand how public key authentication works and with tools such as ChatGPT I'm able to resolve how it works; the server keeps a tab of "authorized" public keys and uses them to ...