GMO GlobalSign (www.globalsign.com), a global Certificate Authority and leading provider of identity and security solutions for the Internet of Things (IoT), today announced that Cayan, a technology company focused on transformative innovations in payments and acquired by TSYS (NYSE: TSS) in January of 2018, is integrating GlobalSign’s highly scalable, cloud-based Public Key Infrastructure (PKI) service to improve ease-of-use and reduce the support costs of its Genius® payment processing platform.