>As I know, if VFP cannot find DBC it suggests user to delete a link and transform data into free table (additional help for a hacker, eh?).

My thought here is that if someone did use VFP to try to browse the table, they would have to remove the link which would cause long field names to be truncated, primary key info to be lost, etc. and would indicate a serious breach of the data. Certainly more than a casual browsing and an indication that someone was 'up to no good!'.

Bob