The counterparty risk of holding Cashu-mint–issued ecash sats is proportional to the holding time. The longer you hold ecash sats issued by a Cashu mint, the greater your counterparty risk. When a user wants to send 10,000 Cashu ecash sats to a friend for better privacy and convenience (without needing the recipient’s address), Keychat Wallet can combine the minting and sending of Cashu sats into a single operation instead of maintaining a continuous 10,000-ecash-sat balance. This reduces the time the user holds the ecash sats. Thus, the Cashu mint is better used as a privacy-preserving bridge rather than for secure long-term storage.