if you need to tell or send me something sensitive, for whatever reason, i recommend you use Signal.
for files, magic wormhole works too, or if privacy is not a huge concern, ask me for an upload link on my copyparty server.
alternatively, you can use age to securely encrypt something and send it anywhere you like.
my recipient (age public key) is: age1u4kz9w5haae9hjtvs89a0cdlsmxxv6gmdukexjdqgxhtxvqk359qrfnk4u
similarly, you can reliably verify the authenticity of a file or message i've signed using minisign.
my minisign public key is: RWSIOX2uZbvMjaD5st90b6u+SXUpKyR6exd7dPGMCqkCA+bv7MsVtC8q
as a backup, the keys are also hosted on my copyparty. there you'll also find a signed message confirming the switch from my old signify key to the new minisign key.