Customers were urged when the problems arose, according to the newspaper Dagens industri, to call in to sell or buy shares.
"We had problems with logging in during a shorter period, which affected both the site and the app. It was about a problem in internal software used for communication between different services. The problem is solved and it is now possible again to log in to Nordnet's services", writes Johan Tidestad, communications manager at Nordnet in an email to TT.