Security issue????

Hello there Informix gurus.... Wonder if anyone would have any suggestions on how to tackle this security issue that we're facing. At the lowest level of security in informix, we have to grant tables and columns priveleges to users. Now this is OK but what if U have a large number of users? Extremely tedious task! Is there any better efficient way of performing this task? Any pointers greatly appreciated. PLEASE email me at peter@hitech.po.my as our news server is on the blink at the moment. Thanks in advance Peter Hitechniaga Software Malaysis