IDC Frontier Inc., a SoftBank Corp. subsidiary, said Wednesday that a cyberattack involving ransomware had disrupted part of its cloud service for corporate customers.The Tokyo-based company said the disruption had affected 495 corporate and municipal customers, including by making their websites inaccessible.The disruption occurred at around 3:40 a.m. Wednesday on its IDCF Cloud service. The firm said it has shut down the system to prevent secondary damage and data leaks, while checking the safety of both affected and unaffected services.Images purporting to show a statement by the perpetr…READ FULL ARTICLE