Beginning March 26, 2017, the Fort Knox Federal Credit Union app will no longer be supported by Operating Systems using versions TLS v1.0 or v1.1. These versions will need to be updated to TLS V1.2 which is a more secure protocol. For Apple devices, updates can be found and verified under Settings, General, Software update. For Android devices updates are under Settings, About Phone or About Device, System updates. If you have further questions about updating your device please consult you phone vendor/software provider for specifics.