One thing that has always concerned me about Quintum machines is the telnet server. Logging on results in the password being sent in clear text. AFAIK, Config Manager encrypts the password, but an SSH server would make more sense for the CLI interface. Could it be possible that someone with a strategically placed sniffer has got your password?
I am always careful to make sure there are no unauthorised calls being sent directly to my gateways, but that means logging on to the Quintum and looking at the calls – using telnet!
Another concern is P103. Any fixes now will presumably be added to the P103 firmware. But, my own tesing has shown many issues with P103, so I have held back on upgrading my production gateways.