Blockchain is a virtually unhackable method of storing data. The way link's in a chain are strong, but if one link breaks, the entire chain is compromised, that is how blockchains work. Every computer that maintains a chain, like Ethereum or Bitcoin, ...
Right now, you must be at least 13 years old to use Zeer. In the future, we will have a family plan that allows minors to use Zeer for safety with a guardian's permission.
Try stringing together several Safewords to create a Safe Phrase that you will remember but never say unless you are in danger. An example may be, “Book Cook Shook” or something similar.