Internet Secure Services Co., Ltd. (Location: Minato-ku, Tokyo, Representative: Toshifumi Tokuda, hereinafter referred to as ISS), a cybersecurity specialist company, has officially announced its "Credential Information Leakage Investigation Service (Abbreviation: Kuremore)" as a standard service. This service aims to support preventative measures by regularly investigating and reporting credential leakage on behalf of clients, thereby avoiding security incidents and damages caused by their misuse. Many of the threats currently prevalent in the market, such as ransomware attacks and business email compromise (BEC), are triggered by attacks using leaked credentials like email addresses and passwords. Once credentials are leaked, they can be bought and sold on the underground market, increasing the risk of widespread misuse. ISS utilizes "Have I Been Pwned®" (HIBP), a globally renowned tool for investigating credential leaks, to regularly investigate and report on behalf of clients whether employee email addresses and passwords have been leaked. By conducting investigations on a domain-by-domain basis in a comprehensive and exhaustive manner, the service includes email addresses that are easily overlooked or mismanaged, such as those of former employees. ISS's "Credential Information Leakage Investigation Service (Abbreviation: Kuremore)" is an adaptation of HIBP for corporate use, designed to be an easy-to-use service for everyone. The service is priced very affordably, aiming to be accessible to all organizational administrators and to contribute to preventing incidents before they occur. - Pricing: The following is as of June 2026. - Service Introduction and Quote Request Page → Credential Information Leakage Investigation Service Support for Corporate Use When using the credential leakage investigation tool HIBP (Have I Been Pwned) for corporate purposes, actual operation requires addressing the following issues, such as workload and the risk of investigation omis