Global temporary table security

Hello All,  

Our Developers are creating Global Temporary tables then granting select, update, delete, and insert privileges to PUBLIC. These global temporary tables will contain sensitive HR data. I realize the data is only visible to the current session, but I still don't like having all privileges granted to PUBLIC. Can anybody tell me if there is a credible security risk to granting these tables to PUBLIC? For example, due to an Oracle bug or hacking? Or are there other disadvantages to granting everything to PUBLIC? Or is it standard practice to grant these tables to public?  

I would like to grant access only to users that will need the table, but the other DBA prefers to grant PUBLIC, because it is easier.  

Thanks for any comments!    

Sam Bootsma

Oracle Database Administrator

Information Technology Services
George Brown College

Phone: 416-415-5000 x4933
Fax: 416-415-4836
E-mail: sbootsma_at_georgebrown.ca <mailto:sbootsma_at_georgebrown.ca>  

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