Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...
The point of scammers using a small value to test stolen numbers is they hope such small transactions go unnoticed for longer, allowing them a bigger time window to use and abuse the stolen card number.
That just doesn’t make a lot of sense. I would question something under a dollar way more then something under $10
That makes you the exception, and not the rule.