The Influence of Information Security Management and Digital Intensity on Firm Performance in Thai Listed Companies

The adoption of digital technologies in organizational processes varies according to strategic objectives, while simultaneously introducing potential risks and security vulnerabilities. Consequently, effective information and technology security management has become increasingly critical. In parallel, organizations that recognize the strategic value of digital technologies are more likely to invest appropriately in technological resources to enhance performance and sustain long-term organizational competitiveness. This study aims to (1) examine the effect of information security management on firm performance, (2) investigate the influence of digital intensity on firm performance, and (3) explore the impact of perceived digital usefulness on digital intensity. A structured questionnaire was employed as the primary data collection instrument. The sample comprised 768 firms listed on the Stock Exchange of Thailand, from which 191 valid responses were obtained, representing a response rate of 24.87%. The results indicate that information security management positively influences firm performance (p < .05), digital intensity has a significant positive effect on firm performance (p < .01), and perceived digital usefulness positively affects digital intensity (p < .05). These findings suggest that firms with well-established information security management systems are more likely to achieve superior performance outcomes. In addition, organizations that perceive digital technologies as beneficial tend to adopt a broader range of digital tools and integrate them more deeply into operational processes, thereby improving efficiency and strengthening overall firm performance. Collectively, the results highlight the strategic role of digital capability and security governance in driving organizational value creation.