TOKYO: Japanese retailer Muji said Monday it had stopped its domestic online shopping service after a ransomware attack on a delivery partner.

“From 9 pm on Sunday, we have suspended order processing and shipping operations for the official online shop,” Ryohin Keikaku, the company that runs Muji, said in a statement.

“This suspension is due to a system failure caused by ransomware infection at Askul,” it said, referring to its online shopping delivery partner.

“We are working with Askul to restore operations, but the resumption date remains undetermined at this time,” the statement added.

Askul said it was “investigating the scope of the impact, including any potential link of personal information or customer data”.

The statement, issued on Sunday, gave no information on the perpetrator of the attack or what their demands were.

Ryohin Keikaku shares fell 2.5 percent in afternoon trade, having been more than six percent down in earlier trade. Askul’s shares lost more than five percent.

AFP