Within the digital identity wallet-movement (and especially SSI), there is a lot of focus on proving something about yourself, without revealing anything else, also known as ZKP (Zero-Knowledge Proof). It is important to realize that if we build this into the future identity systems, we will also grant any criminal the right to full anonymity.
While there are some marginal use cases (buying beer and adult materials) where we might want this, using ZKP also excludes accountability, unless there is a way to reveal the identity behind the proof. This would then be pseudonymity, and the challenge here, is who is authorized to reveal this, and how to prevent mis-use.
