TLS Protocol

A change may affect your access to online banking.

On May 1st, 2018, we will begin to disable the TLS 1.0 encryption protocol, which may prevent you from using some or all of your online and mobile banking functionality. This means that you may need to upgrade your browsers to disable TLS 1.0 and use TLS 1.1 or higher, but this change will not affect you in any other way.

You can test your TLS “score” by visiting this website and check if your browser has already disabled TLS 1.0 by visiting this website.

TLS stands for “Transport Layer Security.” It is a protocol that provides privacy and data integrity between two communicating applications. It’s the most widely deployed security protocol used today, and is used for web browsers and other applications that require data to be securely exchanged over a network.

Please contact our customer service team at 515-777-7940 with any questions or concerns.

Browsers that support the updated Protocol

  • Microsoft Internet Explorer (IE): version 11 and higher
  • Microsoft Edge: all versions
  • Mozilla Firefox: version 27 and higher
  • Google Chrome: version 38 and higher
  • Apple Safari
  • Desktop Safari: versions 7 and higher for OS X 10.9 (Mavericks) and higher (7)
  • Mobile Safari: versions 5 and higher for iOS 5 and higher

Android Users:
Users operating on Android version KitKat (4.4) and lower, which includes about 20% of the U.S. population according to current usage patterns, may be impacted by the disablement of TLS 1.0 as these versions do not support TLS 1.1 and 1.2. Upgrading to Lollipop (5.0) or higher will fix this issue and support TLS 1.1 and 1.2. 

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