Data Centers

Data centers, physical facilities that house networked computers, servers and data storage equipment, are the physical technology backbone to banks' operations, branches, trading floors and online and mobile services.

Once, most banks operated their own data centers or used mainframe-based core systems hosted by providers like Fiserv, FIS and Jack Henry.

In the 2010s, the financial industry started adopting cloud computing, software that's typically hosted in giant data centers run by hyperscalers like Google, Microsoft, Amazon Web Services; by bank software vendors and by AI providers. The majority of bank computing takes place in cloud environments.

Still, some banks run their own data centers for reasons related to security, control and privacy.