I recently received correspondence from MidFirst Bank indicating that my social security number had been inadvertantly released in a hack. The hack appears to have affected not MidFirst Bank itself but rather the vendor they use to make ACH payments and bank-to-bank transfers. As such, MidFirst Bank is unlikely to be the only bank affected.
Although I no longer have an active account with this bank, the bank provided me with free credit monitoring and ID theft through OnAlert from ChexSystems for the next 24 months.
See
https://www.jdsupra.com/legalnews/midfirst-bank-files-notice-of-data-2017895/
