I have no doubt people will be able to hack it. What I’m saying is there is no way it could be hacked without the company finding out and forcing you to return it or pay up. When you sign up you have to give them your personal information and credit card. If you disconnect it from the Internet, filter its Internet traffic, or modify it in any way they will tell you to return it and if you don’t return it they will charge the credit card.
From their terms of service:
In order to use the Product and Services, You will:
(a) Use the Product as the primary television in Your household;
(b) Keep the Product connected to WiFi and internet; and
© Not use any software on Your WiFi network that with advertising blocking capability.
(d) Not make physical modifications to the Product or attach peripheral devices to the Product not expressly approved by Telly. Any attempt to open the Product’s enclosure will be deemed an unauthorized modification.
If we discover that You are not abiding by the requirements above or have disconnected the Product from an internet connection or WiFi for more than short periods each month, You will no longer be able to use the Service and You must return any Products in your possession to Telly. Failure to return Products to Telly will result in Telly charging the credit card on file.
Same in the US