SMS delivery reports can be used to infer recipient's location

> A team of university researchers has devised a new side-channel attack named 'Freaky Leaky SMS,' which relies on the timing of SMS delivery reports to deduce a recipient's location.


See https://www.bleepingcomputer.com/news/security/sms-delivery-reports-can-be-used-to-infer-recipients-location/

More reasons to not use SMS.

Silent SMS feature is scary

> Silent SMS is a "type 0" message with no content, which produces no notifications on the target's screen, yet its reception is still acknowledged by the device on the SMSC.

Is there no way to opt …

attack channel deduce delivery location message privacy reports researchers scary side-channel side-channel attack silent sms team university