A Systematic Literature Review on Cloud Computing Security: Threats and Mitigation Strategies Alouffi, Bader ; Hasnain, Muhammad ; Alharbi, Abdullah ; Alosaimi, Wael ; Alyami, Hashem ; Ayaz, Muhammad Abstract Publication: IEEE Access Pub Date: 2021 DOI: 10.1109/ACCESS.2021.3073203 Bibcode: 2021IEEEA...957792A