00377nas a2200145   4500000000100000000000100001000000100002008004100003260007300044653001900117100002100136700001800157700002000175245003600195       2011                            d  c2011bInstitute of Information and Communication TechnologiesaSofia10aIT4Sec reports1 aZlatogor Minchev1 aKiril Boianov1 aHristo Turlakov00aCritical Infrastructure Attacks