As the world stands today, the future of transaction privacy does not look great. The existing landscape is dominated by traditional credit companies, who over the past decade have been steadily pushing their networks for increased access to user data. They (and their data customers) are on a track to getting SKU level data of every purchase everyone makes everywhere. There are other contenders, such as regional online payments networks (like Venmo in the US), but the data story there is similar.
This is not a future we are particularly excited about. At Signal, we want to help build a different kind of tech – where software is built for you rather than for your data – so these are trends that we watch warily.