Washington: The Twitter accounts of technology moguls, politicians, celebrities and major companies, broken by the unidentified hackers on Wednesday in an apparent Bitcoin scam. The ruse included bogus tweets from former President Barack Obama, Democratic presidential front-runner Joe Biden, Mike Bloomberg and a number of tech billionaires including Amazon CEO Jeff Bezos, Microsoft co-founder Bill Gates and Tesla CEO Elon Musk.

Celebrities Kanye West and his wife, Kim Kardashian West, were also hacked. The fake tweets offered to send USD 2,000 for every USD 1,000 sent to an anonymous Bitcoin address. There is no evidence that the owners of these accounts were targeted themselves. Instead, the hacks appeared designed to lure their Twitter followers into sending money to an anonymous Bitcoin account. The Biden campaign, for instance, said that Twitter’s integrity team “locked down the account within a few minutes of the breach and removed the related tweet.”

Obama’s office had no immediate comment. The FBI said it was aware of Twitter’s security breach, but declined further comment. In a tweet, Twitter noted that it was aware of a “security incident impacting accounts on Twitter.” The San Francisco Company said it is investigating and promised an update shortly. It did not reply immediately to requests for comment. The apparently fake tweets were all quickly deleted, although The Associated Press was able to capture screenshots of several before they disappeared. The security problem was severe enough for Twitter to warn that many of its more than 166 million daily users might be unable to tweet or reset their passwords while the company tried to lock things down. Among the political figures targeted, the hack mostly appeared to target Democrats or other figures on the left, drawing comparisons to the 2016 campaign.

US intelligence agencies established that Russia engaged in coordinated attempts to interfere in those U.S. elections through social media tampering and various hacks, including targeting the various campaigns and major party organizations. The hack might also be a simple demonstration of Twitter’s weak security controls as the U.S. heads into the 2020 presidential election, a contest in which the service is likely to play an influential role. The Bitcoin account mentioned in the fake tweets appears to have been created on Wednesday. By the end of the day, it had received almost 12.9 Bitcoin, an amount currently valued at slightly more than $114,000. At some point during the day, roughly half that sum in Bitcoin was withdrawn from the account.

Bezos, Gates and Musk are among the 10 richest people in the world, with tens of millions of followers on Twitter. The three men are worth a combined $362 billion, according to the latest calculations by Forbes magazine.