European Commissioner for Justice Didier Reynders has informed members of the European Parliament that airlines could use COVID-19 travel certificates to facilitate safe travel this summer. Reynders said that the certificates would not be considered vaccine passports. However, they would contain information on vaccinations, tests or recovery and would remain effective until the World Health Organization deems the pandemic is over. Politico reports that Europe risks creating a technology issue as it is unclear whether each countries digital certificate will all work together. Meanwhile, ComputerWeekly warns about the challenges presented by vaccine passports and how should they be designed and used with ethics and privacy in mind.