redstorm666
n3wb
You're right, I've already reconsidered my configuration and have configured a secured VPN to access my cams.But you might want to re-consider the external access - even with the updated firmware, there are considerable risks in allowing access to the whole internet.
My first cam got hacked less than 24h after being exposed on internet (this cam was unused since monthes, I've put it back online 2 days ago with the original 5.3.0 fw).
The 'hacker bot' had access as admin to the cam and the log shows a 'full config export', which means the hacker could have had access to my setup including NAS storage config/credentials etc.. my first reaction was to try to upgrade the fw which resulted in the brick-ification, and my second thought was to move to VPN config to avoid putting such a fragile component in the wild open internet.
Btw, my 2 others cams (another 2CD2032F-I and a 2CD2132F-IS) has been upgraded to 5.4.5 using same process, and same success : thanks again.