Labiba Nayeem Khan for DOT
 Someone seems to have hacked the Twitter accounts of Elon Musk, Joe Biden, Bill Gates, Barack Obama, and many other celebrities, business magnates, politicians and other public figures. They even accessed the account of Apple, which has never tweeted before.  The accounts are all posting similar messages, which promise that if you send bitcoin to a certain address, they’ll send double back.  It seems that Musk is still struggling to control his own account, with earlier messages disappearing even while new ones appear.  Missouri Senator Josh Hawley sent a letter to Twitter CEO Jack Dorsey asking for more information about the hacks, including how many accounts were affected and how the hacks occurred.  Dorsey later tweeted that it was a “tough day for us at Twitter,” and said the company would provide more information in the future.