What a fantastic way for the commies an Iranians to figure out who the Brit spies are - just get some DNA from all their contacts and run it across the hacked Brit Spy DNA databank and voila!
Brillaint.
We should do the same.
Especially of agents and such that we have in China and Iran and Russia.
If it were a job by MI6, I am assuming they would have hired a foreigner to do it.