Hi Juan. Bribe can remove enemy pieces. If Bribe removes pieces so as to cause any Cash to be removed, then the following rule (from 4.5.4) kicks in:
CONTRABAND: The Syndicate player may transfer any Cash removed (4.5.2) by Bribe to any Guerrilla or cube in the space.
In short, Syndicate can use Bribe to take away somebody else's poorly protected Cash (that they have somehow previously gotten away from the Syndicate).
Hope that answers! Volko