Two UK banks suffered downtime over the weekend after apparently failing to renew their domain name registrations.
Clydesdale Bank and Yorkshire Bank, which offer online banking services at cbonline.co.uk and ybonline.co.uk respectively, both blamed a “systems update” for the downtime.
But some customers reported seeing a registrar’s renewal page when they attempted to access the sites, and others are reportedly still seeing difficulties consistent with DNS propagation delays.
Both domain names have expiry dates of July 26, according to Whois records.
Thankfully, the banks, both of which are owned by National Australia Bank, managed to retain control of their domains. If they’d fallen into third party hands things could have been a lot worse.
Combined, the banks have revenue of a couple of billion pounds.