January 25, 2026
4分で読めますExplains from the basics of EASM (External Attack Surface Management) to practical points for introduction and operation. Visibility into Public Assets and Continuous Risk Management for Pre-Intrusion Measures|Colorkrew Security
December 25, 20253分で読めますWhy do companies need CSIRT now? Against the backdrop of increasing attack sophistication and limitations in person-to-person response, the role, necessity, and relationship between CSIRT and management risk are explained in an easy-to-understand manner|Colorkrew Security
December 24, 20253分で読めますExplain specific steps and practical points for successful CSIRT construction. We will introduce system design that does not become a formality, role definition, training, and improvement in accordance with practical work. ｜Colorkrew Security
November 12, 20253分で読めますExplains the types and risks of supply chain attacks and the defense measures that should be implemented throughout the organization from an expert's perspective. From Account Evaluation to Monitoring|Colorkrew Security
November 11, 20253分で読めますSystematically explains ransomware attack methods, damage risks, and multi-layered defense practices. Introducing a realistic defense model that includes EDR, SIEM, and backup strategies|Colorkrew Security
September 23, 20253分で読めますWhat is OSINT (Open Source Intelligence)? In this article, we will explain how to use it in cyberattacks, the risks, and OSINT countermeasures that companies should take. This is a must-read guide to help prevent information leakage and strengthen security. Colorkrew Security
September 21, 20255分で読めます"We will introduce cloud security cases of medium-sized companies that have introduced SOC, and we will explain in detail how the implementation will change the workplace, such as improving the accuracy of alerts, providing a sense of security in responding to incidents, and strengthening the ability to explain to management." ｜Colorkrew Security
June 1, 20255分で読めますFrom the basics of SOC (Security Operation Center) to why companies need it, and the benefits of external SOC services, it is explained in a gentle way for beginners. ｜Colorkrew Security
