wget -O - http://releases.ponylang.org/buildbot@lists.ponylang.org.gpg.key | sudo apt-key add - This is not secure. Non https connections cannot be trusted. It

wget -O - http://releases.ponylang.org/buildbot@lists.ponylang.org.gpg.key | sudo apt-key add - This is not secure. Non https connections cannot be trusted. It is trivial for a cafe owner to MITM this and now he is generally trusted with your apt-get. BAD.