Information and communication technology (ICT) is used in all spheres of life, including education. Educators are encouraged to use ICT in the classroom, and their technology is constantly improving. The relevance of the study lies in the fact that ICT has become an essential issue and a powerful tool in the educational process. The ICT is applied from the preschool to the university level, facilitating the educational process, changes, and reforms in the field, especially under the influence of the COVID-19 pandemic. The ICT use causes crucial changes in education, visible in the very structure of the educational process and the roles of its stakeholders -- students and teachers. The importance of specific requirements for ICT use is proved by the necessity to adapt to a changing reality in secondary education according to modern requirements, especially for elderly educators. This fact is also critical for the school administration concerning the professional development of teachers. Our study aims to explore teachers' perspectives on using ICT in secondary school education and the relationship between teachers' age, education, work experience and the aptitude for using ICT in teaching practice. The primary research approach is an exploratory-descriptive research based on qualitative and quantitative methods for collecting information from secondary school teachers using a survey and on-site observations. The study's results depict that the technology used in the educational process affects the growth of teachers' professional competence and contributes to high motivation of students, valuable results in teaching, and a substantial improvement in the quality of education. However, it causes particular challenges for teachers and the school's administration. The research data provide possible solutions for refining the ICT use in education and offer insights into effective teaching using technology in secondary schools.