In the wake of the $190 million Wells Fargo settlement over customer fraud charges, there's an increasing need for "individual culpability" for banking infractions, Federal Reserve Governor Daniel Tarullo told CNBC on Friday.

"I don't think [bank behavior] has changed enough" since the 2008 financial crisis, Tarullo said on "Squawk on the Street," citing the Wells Fargo case, in which fee-generating accounts were allegedly opened for unsuspecting customers by employees looking to hit sales targets and bonuses. As a result, 5,300 Wells Fargo employees were fired over a five-year period.