; ▁such ▁as , ▁email ▁filtering ▁and ▁other ▁data ▁traffic ▁filtering . ▁ ▁Product ▁res ale ▁Clear ly ▁not ▁a ▁managed ▁service ▁by ▁itself , ▁product ▁res ale ▁is ▁a ▁major ▁re venue ▁generator ▁for ▁many ▁M SS ▁prov iders . ▁This ▁category ▁provides ▁value - added ▁hardware ▁and ▁software ▁for ▁a ▁variety ▁of ▁security - related ▁tasks . ▁One ▁such ▁service ▁that ▁may ▁be ▁provided ▁is ▁arch ival ▁of ▁customer ▁data . ▁ ▁Man aged ▁security ▁monitoring ▁This ▁is ▁the ▁day - to - day ▁monitoring ▁and ▁interpretation ▁of ▁important ▁system ▁events ▁throughout ▁the ▁network — including ▁una ut hor ized ▁behavior , ▁mal icious ▁ha cks , ▁den ial ▁of ▁service ▁( Do S ), ▁anom al ies , ▁and ▁tr end ▁analysis . ▁It ▁is ▁the ▁first ▁step ▁in ▁an ▁incident ▁response ▁process . ▁ ▁Pen etr ation ▁testing ▁and ▁vulner ability ▁assess ments ▁This ▁includes ▁one - time ▁or ▁periodic ▁software ▁sc ans ▁or ▁hack ing ▁attempts ▁in ▁order ▁to ▁find ▁vulner abilities ▁in ▁a ▁technical ▁and ▁logical ▁per imeter . ▁It ▁generally ▁does ▁not ▁assess ▁security ▁throughout ▁the ▁network , ▁nor ▁does ▁it ▁accur ately ▁reflect ▁personnel - related ▁expos ures ▁due ▁to ▁dis gr unt led ▁employees , ▁social ▁engineering , ▁etc . ▁ ▁Reg ular ly , ▁reports ▁are ▁given ▁to ▁the ▁client . ▁ ▁Comp liance ▁monitoring ▁This ▁includes ▁monitoring ▁event ▁logs ▁not ▁for ▁intr us ions , ▁but ▁change ▁management . ▁This ▁service ▁will ▁identify ▁changes ▁to ▁a ▁system ▁that ▁viol ate ▁a ▁formal