You need a provider and a router ... modem to access the internet. One common provider in the US is Xfinity from Comcast, ...

Comcast's Xfinity is available ... you'll be charged $15 per month for the xFi Gateway, a sleek modem-router combo exclusive to Xfinity that features free security measures, parental controls ...

Many devices use "admin" for the username and "password" for the gateway password, making it easy for someone to connect to your router without ... reset of your Xfinity modem.