Clydesdale and Yorkshire Bank retail bank customers in the UK were locked out of their internet bank accounts this week because the parent group National Australia Bank (NAB) forgot to renew the domain name on its DNS servers, according to a report in ComputerWorldUK.
The outage at the UK banks happened earlier this week when customers were locked out of their online accounts and redirected from the Clydsdale and Yorkshire bank websites to one requesting a domain name renewal. NAB issued a statement saying: "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."
According to ComputerWorldUK the issue arose because the Clydesdale and Yorkshire banks renewed their domain names a month ago, but their Australian owner NAB did not renew the domain name for its overarching DNS server - nabgroup.com - knocking out the sites supporting IT architecture.