ELi5 Netflix said they will charge more if someone outside of your household uses it. How can they tell?

Question

If it’s based on IP address, wouldn’t me veiwing on mobile be affected? If I travel and log in through a hotel wifi, do I have to pay extra every month?

In: 285

Answer 1

I assume it will be more like how they check now to see if you have two logins at the same time.