What Causes History In Computer Virus?

Shepherd Swetmore, Cosetta Edyson, Britt Kelinge, Abbie Parlor, Minnaminnie Ettery, Orelee Foulis, Gwyn Stepto, Iorgo Castello, Abelard Gheorghe, Marcia Castello, Madge Krates, Salomo Benez, Cosetta Krates