can you be impossible to locate through signal?
hi, i'm clueless about online privacy so eli5 please.
my estranged family is trying to reconnect. however the culture where i'm from is fairly severe and in the craziest most extreme cases abducting a wayward runaway child to restore the family's honor is not off the table, so i want to be extra careful.
if i were to message my sister with a signal username, no phone number, data and location turned off, public wifi, with proton vpn, can i be impossible to locate?
if not, what could i do to be untraceable? i'm willing to put in the effort and spend money if necessary.
thanks!