You may have heard Roger talking about coin shuffle coming to their iPhone wallet which may sound nice for privacy, However, it seems the latest iPhone version of the wallet reuses change addresses. In my case addresses I used more than a year ago. Now your current spendings are linked to previous spendings even if you often empty your wallet completely and put new coins in it. I consider this a major privacy issue. Perhaps someone can tag one of their developers, can’t find the GitHub for this version of the wallet.
I don’t exclude I did something dumb, so if anyone using this wallet can confirm?
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source https://www.reddit.com/r/btc/comments/eu2pmw/privacy_issue_bitcoincom_wallet/