Friday’s performance was part of a larger shift. For the week, the Dow, S&P 500 and Nasdaq fell 2%, 2.9%, and 3.5%, respectively. The perpetrators use various names to carry out the investment scams. They may also impersonate or clone licensed capital market intermediaries by using the names, logos, credentials, websites and other details of the legitimate entities to promote the illegal schemes. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Some privacy experts say Telegram is not secure enough
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