"But some IT experts have pointed to a different possible cause: an expiring security certificate. The problem, it seems, is that the Verifone H5000 is a rather

"But some IT experts have pointed to a different possible cause: an expiring security certificate. The problem, it seems, is that the Verifone H5000 is a rather old albeit robust model whose so-called “End of Life” was officially announced by Verifone in 2019. " ... "That is the hypothesis of Jan Wildeboer, a self-described “EMEA Evengelist” at IBM-owned Red Hat who began informing the English-speaking public about the issue in a rapidly expanding Twitter thread." https://jan.wildeboer.net/2022/06/H5000 https://jan.wildeboer.net/2022/06/H5000