Major Japanese video streaming website niconico has temporarily stopped its services due to a cyberattack, according to its operator. “Currently, niconico has been hit by a massive cyberattack and services have been suspended to minimize the impact,” Dwango Co. said, adding it remains uncertain when they can be restored. The website has been offline since Saturday. On Monday, the operator was still checking whether it was safe for the website to resume services, according to niconico’s official X social media account. Dwango is investigating whether there were any information leaks. So far, no…