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...
Half my CCs don’t let me set transaction alerts for less than $5-$10, so a $1 or less charge would never notify me, I’d have to be actively checking it every moment of every day to see it immediately.
And yes, I have email/text alerts when possible for every. single. charge. on my CCs at the lowest threshold possible and it has helped at least three times thus far.