Denso Corp., a top Toyota Motor Corp. supplier, was targeted by a ransomeware attack last week, the auto parts maker said, the latest in a series of potential disruptions for the world’s biggest carmaker.

Denso "promptly responded” to an unauthorized access to its networks in Germany on Thursday, spokeswoman Izumi Saito said on Sunday. At the moment Denso’s operations are not being impacted by the attack, she said.

The incident marks the second recent cyberattack against a Toyota supplier. The carmaker idled all of its factories in Japan two weeks ago after parts supplier Kojima Press Industry Co. was hit by an attack to its systems. Although production resumed after a day, the incident was yet another blow to Toyota as it was seeking to recover production lost in recent months to chip shortages and COVID-related disruptions.