Hi, Fred-san
Thank you again for your information on this.
Yes, I agree that the data in VBAP and EKKO are also important, and we shouldn't let
the competitors to have access to those data in our system.
But I was not sure how those competitors can execute the query with RFC_READ_TABLE in our
system...
I mean, they don't even have a SAP account for our system...
So what you were saying was that if someone (=competitors) catches the data which is being
trasfered over internet while our users are executing RFC_READ_TABLE, it would cause a security risk?
Anyhow, I felt that we need to be very very careful for using RFC_READ_TABLE.
So I will not use this function module in the report this time.
Thank you 
Takashi