*Mary Ravetti's piece about the Apple update serving as a COVID-19* *"Trojan horse" prompted this response from Dick Atlee, who had* *sent the Apple document out to his list: *
*Mark Crispin Miller passed this along. It references the Apple document * *I referenced in yesterday's email. What it fails to mention is that the Bluetooth method of estimating distances is so plagued with uncertainty * *that whether you get dragged into the dragnet or not is kind of a crap shoot.* *From the Apple document:"To approximate distance, the system compares the Bluetooth signal strengthbetween the two devices in contact. The closer the devices are, the higherthe signal strength recorded. This signal strength can vary significantlybased on factors like how the device is being held and as such this onlyprovides an estimate of distance."* -- If you appreciate News From Underground, please consider making a donation — either a one-time gift or a monthly subscription: http://markcrispinmiller.com/support/ Thank you for your support. Ways to unsubscribe: 1) send a blank email to [email protected] PLEASE NOTE: you must unsubscribe using the SAME email with which you subscribed 2) go to http://groups.google.com/group/newsfromunderground and click on the "Unsubscribe or change membership" link in the yellow bar at the top of the page, then click the "Unsubscribe" button on the next page. For more News From Underground, visit http://markcrispinmiller.com --- You received this message because you are subscribed to the Google Groups "News From Underground" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/newsfromunderground/CAGxB6W9HPNSY9fHHU5rk1stXbM%2BsCr7cLzb5N%3D_j8zKGo4TG0Q%40mail.gmail.com.
