Not the GP, but I used to work in desktop development for enterprise businesses.
Most multi-user apps were two tiered: client and database. The way they worked was by connecting directly to the database and/or a shared filesystem in the local network. All validation happened client-side.
Database credentials and fine-grained file/directory permissions were the only security measures. That and the NAT. ;)
There's still software in the market that uses this model, like some niche ERPs from the 90s and software catered to small/mid businesses.
Most multi-user apps were two tiered: client and database. The way they worked was by connecting directly to the database and/or a shared filesystem in the local network. All validation happened client-side.
Database credentials and fine-grained file/directory permissions were the only security measures. That and the NAT. ;)
There's still software in the market that uses this model, like some niche ERPs from the 90s and software catered to small/mid businesses.