Amid the 5G hysteria in the aftermath of MWC 2019, WiFi is still a much greater concern for most operators, even those such as Liberty Global that claim to be adopting mobile-first strategies. Or perhaps especially for them. Over the last year, some operators have been talking up the value of secure WiFi, which is perhaps inevitable after GDPR which has forced privacy into the agenda and made perception of being a leader there a competitive advantage. That is why Amazon has been playing up the security aspect of Eero, the WiFi mesh router firm it has just acquired. By the same token, Turkey’s AirTies, which has carved out a strong position as a WiFi mesh specialist, last month announced…