The Vacc-Pass can certainly be a handy tool for many. However, it can also get people to become tracked more & more like livestock.
https://www.fastcompany.com/90659763/vaccine-passports-hacking-privacy
Of course there are all sorts of privacy issues to consider.
https://www.verywellhealth.com/how-to-show-proof-of-vaccination-new-york-city-5196619
https://www.cbc.ca/radio/spark/the-case-for-and-against-vaccine-passports-1.6047115
https://www.advisory.com/en/daily-briefing/2021/03/23/vaccine-passports
https://www.fastcompany.com/90614712/the-pros-and-cons-of-vaccine-passports
https://www.cnn.com/2019/07/17/tech/elon-musk-neuralink-brain-implant/index.html , https://www.youtube.com/watch?v=njtlC4PF-8w
Before a smartphone or a computer can be miniaturized and connected to ones brain, something else is happening first. https://www.aeris.com/news/post/bluetooth-for-iot
The Bt Headset has become like the human version of the animal Ear_tag.
https://en.wikipedia.org/wiki/Bluetooth#List_of_applications
https://www.techradar.com/news/the-best-bluetooth-headsets
https://en.wikipedia.org/wiki/National_Livestock_Identification_System
https://research.csiro.au/dss/livestock-provenance-management-ceres-tag
https://www.digitalmatter.com/applications/livestock-tracking
Think of an A.I. managed world where humans are tracked just like livestock in the IoT.
https://www.technologyreview.com/2018/05/15/66860/cyborg-cows-are-coming-to-a-farm-near-you
Welcome to the world of Animal Farm.
https://en.wikipedia.org/wiki/Animal_Farm#Plot_summary
https://thedigitallabyrinth.blogspot.com/search?q=Vaccine+Passports
https://thedigitallabyrinth.blogspot.com/search?q=hackers
https://thedigitallabyrinth.blogspot.com/search?q=Neuralink