Kryptattuja ja sähköisesti allekirjoitettuja sähköposteja Pantherin Maililla Using encryption and digital signatures in Mail. ”The version of Mail that ship with Mac OS X 10.3 has gained the ability to sign and encrypt email messages. This is terrific news, because it allows us to verify the identity of the sender of a received email message, it allows us to verify that the message has not been tampered with in transit and finally it allows us to send encrypted email messages – in other words the ability to put an envelope and a seal on our email messages.”