Fans buying tickets for Adele’s tour have told the BBC they were shown the address and credit card details of customers other than themselves.
Advance tickets were made available to members of Adele.com on Tuesday morning.
But several fans said they were shown other people’s shopping baskets, including payment details, when they tried to check out.
The sale was organised by live music and technology firm Songkick, which provides concert tickets and allows fans to be alerted to upcoming shows.
Read more on BBC.