${?}_{{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}\text{a}\text{r}\text{e}\text{h}\text{i}\text{g}\text{h}\text{l}\text{y}\text{p}\text{r}\text{o}\text{b}\text{a}\text{b}\text{l}\text{e}\text{w}\text{h}\text{e}\text{n}\text{i}\text{n}\text{f}\text{e}\text{c}\text{t}\text{e}\text{d}technologies\text{a}\text{r}\text{e}\text{b}\text{r}\text{o}\text{u}\text{g}\text{h}\text{t}\text{b}\text{a}\text{c}\text{k}\text{o}\text{n}\text{l}\text{i}\text{n}\text{e}or\text{w}\text{h}\text{e}\text{n}\text{o}\text{t}\text{h}\text{e}\text{r}\text{i}\text{n}\text{f}\text{e}\text{c}\text{t}\text{e}\text{d}\text{c}\text{o}\text{m}\text{p}\text{u}\text{t}\text{e}\text{r}\text{s}\text{t}\text{h}\text{a}\text{t}\text{m}\text{a}\text{y}\text{h}\text{a}\text{v}\text{e}\text{b}\text{e}\text{e}\text{n}\text{o}\text{f}\text{f}\text{l}\text{i}\text{n}\text{e}at\text{t}\text{h}\text{e}\text{t}\text{i}\text{m}\text{e}of\text{t}\text{h}\text{e}\text{a}\text{t}\text{t}\text{a}\text{c}\text{k}\text{a}\text{r}\text{e}\text{b}\text{r}\text{o}\text{u}\text{g}\text{h}\text{t}\text{b}\text{a}\text{c}\text{k}up.}$

${?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{{?}_{?}}{?}_{a}re$ highly probable when infected technologies are brought back online $or$ when other infected computers that may have been offline $at$ the time $of$ the attack are brought back $up.$

Blue bag operations

Follow$-on$ disasters

Black bag operations

Retaliatory attacks