Authentication Almost every country that has reopened for travellers now requires proof of negative COVID-19 test result on arrival. However, with several cases of fraud COVID results, authentication has been a major concern recently. USA's handwritten “COVID-19 Vaccination Record Card” has already made it to the news due to cases of forgery. Developers are of the opinion that a digital certificate would be more authentic as it will be difficult to tamper with the digital records. IIt is also a matter of concern that there will certainly Like similar previous initiatives, privacy and security be a group of people who would not have the chance associated with vaccination certificates has been a to get the vaccination passport. There exists a matter of concern among users. Discussions about relatively small group who cannot take the COVID-19 security threat and breach of privacy are already rife vaccination due to other health concerns. Therefore, online. However, developers opine that phone authorities should work towards introducing a form should have minimal personal data and encryption of passport that can be used by such individuals to keys are the only reliable source of transmissible state their concern so that they are not barred from data that allow secure exchange of information. They regular travel-related activities. As for people who have already mentioned that vaccine passports will do not have smartphones or families that do not not likely raise any additional privacy concerns as have a separate device for each member, IATA and EU users are only required to put in place a “yes” or “no” officials have reportedly started to work towards credential status. s.introducing certain solutions.The ExceptionsPrivacy and Security17 TTW World