Some users neglect to change the default password that came with their computer system account.
The other thing is, I'm surprised to hear you haven't changed the default password.
The hack depended upon the fact that the equipment was using its default password.
So everyone knew what the default password was.
Your wireless router's default password should be changed immediately.
After a full factory reset, it wasn't even accepting its default password.
That explained why the modem did not reset to the default password.
Lists of default passwords are widely available on the internet.
Leaving the default password on devices connected to an open network (such as the internet) is a huge security risk.
It was revealed that a default password for the networks was being used.