In addition to this: airport security cameras are REALLY good these days. So if you are in a risk group and want to use a passcode to secure yourself, make sure you don’t unlock your phone at the airport at all.
These days, with QR boarding passes etc, a burner may be a better alternative for such people.
Good initiative, not the best name.
Open Geospatial Consortium (also OGC) is leading in its domain and has been for years. https://www.ogc.org/
Not listed in the article: I like Detrumpez Vous best. It has been around for a while, and yes, it is offered in English as well.
https://play.google.com/store/apps/details?id=com.detrumpezvous.app
I can think of several ways: log analysis, methodology analysis, analysis of code comments writing style/errors, keeping the vulnerability in and finding home calls, human intelligence.