Kanazawa Kogyo: contact form abused to send spam; automatic replies stopped

From around 2 to 5 November a third party abused the contact form to send inquiry-acknowledgement emails using the company as sender. It stopped automatic replies and took preventive measures on the 5th; confirmation messages remain disabled at publication. No server intrusion or personal-data leak is confirmed. Message/recipient counts and the precise technique are undisclosed. [1]