While a centralized system solves one challenge, the storage of personally identifiable information and biometrics data is a security risk, said David Mattei, a strategic advisor in the fraud and AML practice at Datos Insights, which works with financial services, insurance and retail technology companies.
Notably, there have been reports of data stolen from India's Aadhaar system. And last year, El Salvador's government had the personal data of 80% of its citizens stolen from a centralized, government-managed citizen identity system. "A lot of security experts do not advocate having a centralized security system because it's kind of like the pot at the end of the rainbow that every fraudster is trying to get his hands on," Mattei said.