President Donald Trump’s trade war is prompting investors to sell off U.S. assets, which is eroding the value of the U.S. dollar.

Digital assets transactions from Bitcoin, XRP, other cryptocurrencies and non-fungible tokens (NFTs) must be reported on ...

From hidden magnetic fields to the way ink bleeds across the paper, WSJ sits down with a leading currency expert to explore the techniques used to prevent counterfeiting and forgery.