Caulis provides a fraud access detector service on the cloud for corporations, called Fraud Alert. The service’s AI detects fraudulent remittance. Because of the cloud-based system, the annual fee for the service is reasonable, starting from a few thousand yen. The blacklist collected by Fraud Alert is provided to all users, so that the service can prevent potential fraud coming from outside of the existing known fraud, creating a better system compared to existing fraud detectors. The system has been installed for over 50 million users, including major communication companies, banks, and EC websites.