Please How Do We Help Banks Against Armed Robbers?

hi, it just occured to me that the frequency with which dare devil robbers raid banks with hi-tech equipments and aggresive bravado  nowadays is rather disturbing with the attendant loss of lives and thereby  rendering women,widows and children,fatherless,
They now rob banks mostly  at night using welder's instrument and gas to cut through safes, please the banks are not helping matters anyway, the world is going cashless, with cards now, Nigeria as usual is yet to wake up, to this reality,
fellow naira landers what advice should we give these financial instititions as to safe guarding depositor's money, is it buy printing fake marked currencies as a decoy, putting the money in bullet proof safes /underground tunnels, or  what , i really feel for  the kids of all these slained policemen/innocent passersby,
by the way, most of these atrocities are often near military formations. ,
how do we help these sloppy banks, they should know that its not wearing suits/mini skirts  and posing  that matters  but having pre-emptive ideas that would help/protect customers .