TY JOUR TI Analysis of security threats and information protection measures in computer systems of higher education institutions KW cybersecurity KW phishing KW malware KW social engineering KW DDoS attacks KW vulnerabilities KW data protection KW cyber threats KW public Wi-Fi networks KW information security KW multi-level access control KW cyclic update of protective measures algorithm JO National Security and Strategic Planning AU Pshenichny, D.V. AU Dyachenko, Y.Y. PY 2025 IS 2025 PB Strategy of the Future