The purpose of this study was to establish the influence of HRIS information security on the organisational performance of commercial state corporations in Kenya. A Cross-sectional descriptive research design was used. The population was drawn from 55 Commercial State Corporations in Kenya. The units of observation were the managing directors or chief executive officers, directors of human resources, and deputy directors of human resources. The study used qualitative and quantitative methods to collect primary and secondary data. Data were collected from 110 respondents. Questionnaires and interviews were used to collect data for the study, supplemented by secondary sources. SPSS version 23.0 was used to analyse data using descriptive analysis, factor analysis, Pearson correlation, analysis of variance (ANOVA), and regression. The correlation and regression results revealed that HRIS Information Security had a positive and significant relationship with Kenya's Organizational Performance of Commercial State Corporations. The null hypothesis indicating no significant relationship between HRIS Information Security and Organisational performance of Commercial State Corporations in Kenya was rejected. From the study findings, it was recommended that organisations should keep a record of who is in charge of implementing the security agenda across the board and let all employees know about it. Information security policies, organisational internet usage policies, software management policies, and security expectations that align with the functions' tasks should all be explained to and covered in the training for employees