One clever approach is to place an upper bound on the number of times that a ZK credential can be used. For example, we might wish to ensure that a credential can be “shown” at most N times before it expires. This is analogous to extracting many different single-use credentials, without the hassle of having to make the Issuer and User do quite as much work.
The confidential employee hotline is one of the first ideas that Rascoff put into motion after becoming Match Group’s CEO in 2025, overseeing iconic online dating platforms like Hinge, Tinder, and Match.com.
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