In this regard, Sebi collaborated with the Telecom Regulatory Authority of India (TRAI) to reduce the vulnerability of the securities market to manipulation through misuse of mass communication medium like bulk SMS. Anastasia Vlasova/Getty Images Despite Telegram's origins, its approach to users' security has privacy advocates worried. The Russian invasion of Ukraine has been a driving force in markets for the past few weeks. Some privacy experts say Telegram is not secure enough
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