ARTICHOKE operations involved detailed, systematic creation of specific amnesia barriers, new identities and hypnotically implanted codes and triggers.
It was a means of distinguishing one another, and his means of summoning us to him. When he touched the Mark of any Death Eater, we were to Disapparate, and Apparate, instantly, at his side.
Agree on security questions with close friends and family so as to detect Death Eaters masquerading as others by use of the Polyjuice Potion (see page 2) .
Casper also devised another code: a triangular advertising sign on the shop window meant that it was safe to come in, if it was placed back to front, it meant that it was better to wait.
" We're together" . Jimmy nods to the assistant with a glance that sort of functions as a secret handshake to communicate the message, " Don't worry, I'm one of you! "
The world's run on codes and ciphers, John. From the million-pound security system at the bank to the PIN machine you took exception to. Cryptography inhabits our every waking moment.