CalCom is a United States-based company established in 2001, operating within the Business Services industry, specifically focusing on custom software and IT services. With a workforce of 11 to 50 employees, the company generates revenue of approximately $7.35 million. CalCom's expertise spans various sectors, including computers and technology, broadcast media, facilities services, and telecommunications. The company has published a document titled "System Hardening Cheat Sheet," which emphasizes the importance of securing information systems through periodic vulnerability analyses and penetration testing. It highlights that misconfigured assets account for a significant percentage of infrastructure vulnerabilities and outlines best practices for hardening systems across various layers, including applications, databases, and operating systems. The document also discusses the necessity of establishing secure configurations to mitigate risks from numerous attack vectors and compliance with industry regulations. Overall, CalCom's focus is on enhancing system security and performance through effective hardening techniques and guidelines.