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The Cameo app — where you can pay various celebrities to send you personalized video messages — was used by Russians to create anti-Ukraine propaganda, according to Microsoft researchers and reported in The Wall Street Journal.
Typically in a Cameo, you can request a celeb to make a short video of a birthday greeting or pep talk for a friend, but the celebrity never gets too much detail about the full names or identities of the person they're talking to.