Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) IKEGAMI Masato,Cyber-attack trends and countermeasures,The Journal of Information Science and Technology Association,0913-3801,"Information Science and Technology Association, Japan",2023-03-01,73,3,81-86,https://cir.nii.ac.jp/crid/1390858220181593216,https://doi.org/10.18919/jkg.73.3_81