While I’m stepping (very gingerly) through the security minefield, I might as well dust this one off, too:

A number of customers have recently reported security issues which may have been

avoided if they had followed Oracle’s published recommendations on securing

E-Business Suite Release 11i environments.  All E-Business Suite Release 11i system administrators and security professionals should have the following crucial documents committed to memory:
Even if you’ve read earlier versions of these documents, I’d strongly recommend taking another look at the latest versions.