# Weekly Tech Update #7

This week's featured links:

-  [Google updates Passes API to store COVID vaccination and testing information on Android devices](https://developers.googleblog.com/2021/06/google-updates-passes-api-to-save-covid-testing-and-vaccination-information-on-Android-devices.html)
-  [Startup concepts](https://ajuniorvc.com/startup-concepts)
-  [An Exploration of JSON Interoperability Vulnerabilities](https://labs.bishopfox.com/tech-blog/an-exploration-of-json-interoperability-vulnerabilities)