Freaky Leaky SMS: Extracting user locations by analyzing SMS timings
TIL about SMS Delivery Reports and I Googled to learn how to enable them in the native SMS messaging app on my mobile device!I didn't have time to read the whole doc.  Did it say how many SMS Delivery Reports were needed to create the model?  I saw this "We repeated the classification for every combination of locations in our dataset, with sample sizes varying from 100 to 500"I think getting 100 messages from a (series of) unknown number(s) would be alarming, but after reading this, I now know that it's a sign that I need to ... get a new burner phone and increase the size of my security detail?  :^)