OT: BA jihadist relied on Jesus-era encryption

[Jeffrey Walton]

An IT worker from British Airways jailed for 30 years for terrorism
offences used encryption techniques that pre-date the birth of
Jesus.... Woolwich Crown Court was told that Bangladeshi Islamic
activists who were in touch with Karim had rejected the use of common
modern systems such as PGP or TrueCrypt in favour of a system which
used Excel transposition tables, which they had invented themselves.

http://www.theregister.co.uk/2011/03/22/ba_jihadist_trial_sentencing/