Unknown people posted on Twitter, the candidate for US President from the Democratic Party, Joe Biden, and some other famous people, the same type of messages with an offer to earn bitcoins in the spirit of financial pyramids.
“I give back to society. All bitcoins sent to the address below will be sent back in double amount! If you send $ 1000, I will refund $ 2000. Only for 30 minutes,” Biden’s account says.
Also, the same messages appeared on the pages of former US President Barack Obama and famous rapper Wiz Khalifa.