Provide "a pleasant and safe working environment anytime, anywhere". Even before the Corona disaster, that has been one of the key roles of the Information Systems Department. In order to provide employees with such a comfortable environment even in the midst of major changes where hybrid work styles are becoming the norm, we are driving activities such as promoting the use of collaboration tools and organizing and strengthening security measures based on the zero-trust premise. Examples of our efforts and the direction where we are aiming for will be presented, including activities in which they are exploring various options.