Anti-Tempest Fonts, Where?

[George Orwell]

man gpg

the above cmd mentions anti tempest fonts. what does this mean
exactly? where are the anti-tempest fonts? i've searched the
net for them and cannot find them. the only mention of soft
tempest fonts were within a .zip containing image files claimed
to be for example only.

do tempest resistant fonts exist?

Il mittente di questo messaggio|The sender address of this
non corrisponde ad un utente   |message is not related to a real
reale ma all'indirizzo fittizio|person but to a fake address of an
di un sistema anonimizzatore   |anonymous system
Per maggiori informazioni      |For more info
                  https://www.mixmaster.it