http://whirtorrgetftvz4g466sjqkegtyi35bjl4bvotfkfossunf5my4x6ad.onion/blog/financial-privacy-human-right
This means that they would have huge data collection that could be misused, sold or lost due to hacks as it would have a centralized point of failure. All of these bring more risks to the end users, which could be eliminated or at least diminished if financial privacy was taken as a human right and was not abused.