The voice records of five million taxpayers are being deleted by the UK’s tax authority, as the way they were collected broke privacy rules.
HM Revenue and Customs (HMRC) failed to gain explicit consent from individuals before signing them up to the voice ID system for telephone enquiries.
Campaigners accused HMRC of creating “biometric ID cards by the back door”.
The Information Commissioner’s Office (ICO) said there had been a “significant” breach of data laws.
“Innovative digital services help make our lives easier but it must not be at the expense of people’s fundamental right to privacy ... Read even more