As cyberattacks against banks escalate -- with 93 percent of banks worldwide reporting they've been hit -- Bremer Bank in Minnesota ramps up its defenses.

As cyberattacks against banks escalate -- with 93 percent of banks worldwide reporting they've been hit -- Bremer Bank in Minnesota ramps up its defenses.

As cyberattacks against banks escalate -- with 93 percent of banks worldwide reporting they've been hit -- Bremer Bank in Minnesota ramps up its defenses.

As cyberattacks against banks escalate -- with 93 percent of banks worldwide reporting they've been hit -- Bremer Bank in Minnesota ramps up its defenses.