My linksys befsr41 vers 3.1 is not on the list but the vers 4.1 is so i would assume mine is also on the list even though it was not tested. It is a standard older 4 port switch/hub that routes the internet. Of course it can be hacked since it lacks any type of firewall or password protection. It is the same as plugging your internet directly to the lan card without a router at all.
These older routers all just redirect what the cables plugged into them have. The internet is the same as if it were plugged directly into the cable box.
If you have this type of router on the internet and a network, only share folders on the network that have stuff like music folders that are backed up since anyone can change or delete files in the shared folders at will. Since you are really offering to share these folders with the world, unplugging your lan cable at the internet box while sharing other more important folders on the network or when not using the internet is a easy way to stop hackers from your network when moving files between computers. Your network will still work without the internet. Each computer is dependent on its own antivirus/internet scanning/firewall. This will help only somewhat.
Do not leave your network plugged in to the cable box 24/7, only plug it into the internet when you are using the internet.
Most look for a RELIABLE internet connection to hack, so they can redirect files or sites with your internet, or use your computer as a file server. Disable in the bios wake on lan, this feature allows the computer to be turned on via the lan cable, so you have all your computers off, they can be started up and used when you are not using them!.
If you need better security buy a new wireless router even if you only need wired connections, these routers have better password protection and firewalls than the older style router i have.
I doubt that the hack he is releasing is anything new to hackers, i'm not a hacker but understood how poor my router was many years ago, but hacking would be actually working to get into something, that is not the case with these older routers since they simply let anyone in.
You also have a bit of safety in numbers, with millions of computers to hack, the chances of yours is reduced simply because noone has time to hack them all. But you never know?
Did you know this is a trap? Give the software out to make it even easier to hack. Then track where they hack with it. It is easy for internet servers to keep logs, then they just simply suspend the offenders internet account. Its easier than trying to find all the hackers. entrapment? sort of i suppose.
If the internet prov