In preparation for the 2021 Tokyo Olympics, Japan worked to develop a contact tracing app that would track foreign visitors, but concerns quickly mounted over bugs in the software and whether all visitors would own smartphones on which to install the app.The Citizen Lab report said MY2022 failed to confirm a unique encryption signature with the server where it was transferring data. In effect, that meant hackers could intercept the data without Chinese officials necessarily knowing. Other parts of the app, like its built-in messaging service, failed to encrypt metadata, making it easy for owners of wireless networks or telecoms to detect which phone was messaging …
