Hey, Blik2. I want to say that this woman should trust anybody, especially if we are talking about cryptocurrency. If your friend's wife started investing, I advise you to recommend her to read Mastering Bitcoin, this book is about this cryptocurrency, there you can find a lot of information about this topic. Also, I recommend her to use special sites called mixers, they will hide your data while she will be making transactions so that to secure yourself. Personally, I'm using this bitcoin mixer. I've been using it for 3 months and I haven't had any problems, it's very easy to use, so I think she won't have any issues at all.
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