Tell me if this is right: The WiFi SSID password is used to create the encryption code, so if your wireless router has just one SSID, or multiple SSIDs that share the same password, all the local devices that use WiFi on your local network can see each others' traffic, violating your privacy if any of those devices, many of which may not be very secure in the modern age in which everything more sophisticated than a toothbrush uses WiFi, are hacked.
Presumably, for devices that use it, Https encrypts that traffic in a way other devices can't easily decode, but can any of the local devices send packets to initiate a man-in-the-middle attack, fooling devices that I want to be reasonably secure, like PCs passing financially valuable info like passwords and credit cards, into disclosing that info?
What if I turn on device isolation, assuming my router supports it? Does it somehow solve these problems?
Will creating separate SSIDs for each device that needs to be secure, with separate passwords, fix the problem?
If so, does any DD-WRT or OpenWRT or similar open software compatible router support creating many SSIDs?
Also, do the same things apply to wired connections, or is the data on each Ethernet port of a router unique to that device?
I apologize for asking such basic questions here. I really don't understand network security very well.
Presumably, for devices that use it, Https encrypts that traffic in a way other devices can't easily decode, but can any of the local devices send packets to initiate a man-in-the-middle attack, fooling devices that I want to be reasonably secure, like PCs passing financially valuable info like passwords and credit cards, into disclosing that info?
What if I turn on device isolation, assuming my router supports it? Does it somehow solve these problems?
Will creating separate SSIDs for each device that needs to be secure, with separate passwords, fix the problem?
If so, does any DD-WRT or OpenWRT or similar open software compatible router support creating many SSIDs?
Also, do the same things apply to wired connections, or is the data on each Ethernet port of a router unique to that device?
I apologize for asking such basic questions here. I really don't understand network security very well.