smarlowe@xxxxxxxxxxxxxxxxx (Scott Marlowe) writes: > About the security thing. Security is a process, and you won't get > it from using two different database engines. I'd argue that security is an "emergent property" which is either supported by or undermined by particular facts/features/configurations. It's not something you can have; instead, conditions may either: a) Leave you vulnerable to particular attacks, or b) Protect you from particular attacks. "Being secure" means that you have done an analysis of some set of attacks and relevant vulnerabilities, and verified that your conditions provide protection against those attacks. Having multiple databases around would protect certain vulnerabilities; whether they are *relevant* is a whole other matter. The notion of having a mental model of what security is, that's something I'd consider vitally important. If you can't articulate some sort of model that involves the notions of: - Attacks, vulnerabilities, and protection against such - Having some classification of kinds of possible attacks then I don't think it's possible to articulate that there is any resultant security. You might be secure, for some definition thereof, but if you can't articulate that definition... -- output = ("cbbrowne" "@" "acm.org") http://cbbrowne.com/info/security.html Friends help you move. Real friends help you move bodies.