What is the validity of CheQ chips?

Could you elaborate on the validity of CheQ chips? Are they widely accepted as a form of payment or do they have limited use cases? Are there any regulations or standards that govern their use and issuance? Additionally, how secure are CheQ chips and what measures are in place to prevent fraud or counterfeiting? Understanding the validity of CheQ chips is crucial for both consumers and businesses looking to adopt or accept them as a form of currency.