After all, the piano is such a welter of machinery: Push a key and before you hear a note, a small lever pushes against an intermediate lever, which pushes a jack, which pushes a roller, which pushes a hammer toward the strings.

NPR: Murray Perahia: Bonding With Bach And Chopin

"An intermediate certificate is essentially a master key that can create certificates for any domain name, " explained security analyst Chester Wisniewski from Sophos in a blogpost about the security lapse.

BBC: Google detects fake website ID certificate threat