TheCodeBreakers
using their first code, a small one of about 300 groups. This development
may have been influenced
by the French, who had learned about the German solution of
Russian messages from their own cryptanalyses and had passed the
news to their allies. Or it may have resulted from Russia's own intercept
service; just how well Russia did in military cryptanalysis is not known,
but she did set up direction-finding stations in mid-1916 and started an
intercept school at Nicolaieff.
The travail of the Central Powers cryptanalysts, who were unused to
code, was simplified when some Russian commands, who were equally
unfamiliar with it, continued using the old system. And their work was
made almost mechanical when the headquarters of a Russian guard
detachment that was being joined to the 8th Army compromised the new
system by a message in clear. A great hubbub arose in the 8th Army; a
new code was instituted; this one cryptanalysts solved without much
trouble
annaabi.ee 
