As the bitcoin network grows, there is a significant network effect. Making the risk of bitcoin failing go down every day.
However, of course there is a risk that it could fail. To make sure users are protected, we've designed our technology to be robust. We can transfer records to another blockchain if ever necessary.
We also have the option of creating our own private blockchain. Or use no blockchain at all. We deliver significant value even if we didn't use the blockchain so we're not worried.