Clydesdale and Yorkshire Bank customers were locked out of their online accounts earlier this week because owner NAB forgot to renew the domain name on its DNS servers, according to ComputerWorld.
Over the weekend as bank customers were shut out of their online accounts, reports began surfacing that users were being redirected from the site to one requesting a domain name renewal.
By yesterday a statement on the Clydsdale and Yorkshire sites appeared claiming that the issue had been resolved but adding: "We understand that some customers are experiencing difficulties depending on their Internet Service Provider.
"Once your ISP has updated its server, you should be able to use the sites as normal. We also recommended clearing your browser cache and resetting your internet router."
ComputerWorld UK has now shed some light on the incident: Although The Clydesdale and Yorkshire banks moved to renew their domain names a month ago, their Aussie parent, NAB, forgot to renew the domain name for its overarching DNS server - nabgroup.com - knocking out the sites.