create a security page w3develops.org/contribute/security

similar to (use this page for inspiration to see how its done right)
https://contribute.freecodecamp.org/security/


they can email you using this link https://mailxto.com/zdhn3fit2a

and they can send an encrypted message here https://flowcrypt.com/me/w3develops or via public key : https://flowcrypt.com/pub/w3develops?show=pubkey