here“If you send $1,000, I will send back $2,000!“Only doing this for the next 30 minutes! Enjoy.”Bill Gates, Democratic presidential candidate Joe Biden and Amazon billionaire Jeff Bezos were among those targeted.Kanye West’s account was hacked twice in the space of an hour with the same message posted.Apple, Uber and other company accounts were also hacked.Most of the tweets have been deleted, but some have been retweeted thousands of times.Twitter said: “We detected what we believe to be a