From the article:
> Some ISPs provide a combined router/modem. It can be beneficial for security to purchase a separate router and set your ISP router/modem into modem-only mode. This way, even when your ISP-provided router is no longer getting updates, you can still get security updates and patches. It also means any problems that affect your modem won't affect your router and vice versa.
It's probably also worth highlighting that most ISP router/modems have a backdoor to allow support staff at the ISP to change arbitrary settings, view which devices are on your network, and so on. A dedicated router (particularly one that uses an old-fashioned 192.168.1.1 HTTP admin screen rather than an app) eliminates that attack vector.
