BEx Broadcaster Encrypt

Hi,

I am using BEX Broadcaster (BW 3.5) to distribute static HTML reports. However I am looking to increase the security of the distribution by encrypting the emails so that neither of the recipients can forward the message.

Since the BEx Broadcaster does not give to many options I wonder if it is possible? An suggestions?

Is the encryption available in BI 7.0 or with the Enterprise Portal?

Cheers, T.