Yes and no. Perhaps more accurately you should say 'Anyone who relies on restricting information indefinately to stay in business is in trouble these days.'
There are many cases where restricting information for a limited duration is an entirely viable business proposition. A classic example is Pay TV. In Europe, Pay TV operators make an absolute truckload of money each time the Football World Cup rolls around. Why? Just before the tournament starts, they all update the algorithms protecting their broadcasts. In general, these algorithms are pretty thoroughly hacked, and you can relatively easily get your hands on a pirated STB to get your feed. But it takes a while to figure these hacks out (anywhere between 1 month and several years, depending on how clever the scheme is). The thing is, it's no good figuring out how to crack the system in 3 months time, the pirate's customer wants to watch the football live! So, he has no choice but to cough up the money for the official STB/Pay TV subscription.
There are many cases where restricting information for a limited duration is an entirely viable business proposition. A classic example is Pay TV. In Europe, Pay TV operators make an absolute truckload of money each time the Football World Cup rolls around. Why? Just before the tournament starts, they all update the algorithms protecting their broadcasts. In general, these algorithms are pretty thoroughly hacked, and you can relatively easily get your hands on a pirated STB to get your feed. But it takes a while to figure these hacks out (anywhere between 1 month and several years, depending on how clever the scheme is). The thing is, it's no good figuring out how to crack the system in 3 months time, the pirate's customer wants to watch the football live! So, he has no choice but to cough up the money for the official STB/Pay TV subscription.