Someone should've coined this disaster as "QuattroFail" to give it a little panache and international mystery

"4" was only some of the keys (they were all <256).. ByteFail seems more accurate

OneByteWonder

but they were all deceived... in the darkness of a key-signing ceremony, another cert was signed. One byte to rule them all, and in the darkness MITM them.

Byte-sized Quiche