On Halloween this year I learned two scary things. The first is that a young toddler can go trick-or-treating in your apartment building and acquire a huge amount of candy. When they are this young they have no interest in the candy itself, so you are left having to eat it all yourself.
The second scary thing is that in the heart of the ubiquitous IMAP protocol lingers a ghost of the time before UTF-8. Its name is Modified UTF-7.
Inside UTF-7 is an even older more powerful ghost that is still lurkering EVERYWHERE…
Base64. Needed to make binaries survive buggy conversions between ASCII and EDCDIC.
And now what is EBCDIC…. No one knows for sure except it an Ancient one from the time of the mainframes, but the mainframes can not be killed, they only slumber to return when the stars are right.