Twitter accounts of Obama, Biden, Musk and others compromised

Several prominent Twitter accounts, including those of former Vice President Joe BidenJoe BidenGOP chairmen hit back at accusation they are spreading disinformation with Biden probe Trump outraises Biden in July, surpasses billion for the cycle Duckworth: Republican coronavirus package would 'gut' Americans With Disabilities Act MORE, former President Obama, Tesla CEO Elon MuskElon Reeve MuskHearing for Twitter hack suspect Zoom-bombed by porn, rap music Hillicon Valley: NSA warns of new security threats | Teen accused of Twitter hack pleads not guilty | Experts warn of mail-in voting misinformation Florida teen accused of Twitter hack pleads not guilty MORE and Microsoft co-founder Bill Gates, were compromised Wednesday in what appears to be a bitcoin scam.

The attack is likely the largest ever on Twitter's security system and may have already cost users ten of thousands of dollars.

The accounts – which included other tech CEO's including Amazon's Jeff BezosJeffrey (Jeff) Preston BezosHearing for Twitter hack suspect Zoom-bombed by porn, rap music Five takeaways from Big Tech's blowout earnings Hillicon Valley: Trump raises idea of delaying election, faces swift bipartisan pushback | Amazon, Apple, Facebook, Google release earnings reports | Senators ask Justice Department to investigate TikTok, Zoom MORE, celebrities such as Kanye WestKanye Omari WestTrump asked about Kanye presidential bid: 'I like him. I like his wife' Kanye West files to appear on Ohio ballot Multiple political figures helping Kanye West have GOP ties: report MORE, and other political figures like former New York City Mayor Michael BloombergMichael BloombergHillicon Valley: Trump raises idea of delaying election, faces swift bipartisan pushback | Amazon, Apple, Facebook, Google release earnings reports | Senators ask Justice Department to investigate TikTok, Zoom Meme group joins with Lincoln Project in new campaign against Trump The Hill's Morning Report - Presented by Facebook - Trump pivots on convention; GOP punts on virus bill MORE – posted similar messages offering to double bitcoin payments sent to an address during a set period of time.

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The posts all included the address of the same bitcoin wallet, which has seen as much as $112,000 pour into it over the last few hours. It is unclear if this money came from unsuspecting users or the scammers themselves.

Other major accounts that were hacked include companies such as Uber, Square's Cash App and Apple.

All of the tweets were deleted soon after being posted, but, given the accounts' large followings, they have been viewed widely. While individual accounts – especially ones that do not use security measures such as two-factor authentication – are often hacked, the scope of this effort suggests a deeper security failure.

Sen. Josh HawleyJoshua (Josh) David HawleyYates spars with GOP at testy hearing Democrats seek to exploit Trump-GOP tensions in COVID-19 talks Negotiators hit gas on coronavirus talks as frustration mounts MORE (R-Mo.), a fervent critic of big tech companies, sent a letter to Twitter CEO Jack Dorsey raising concerns about the impacts of the platform being compromised.

“I am concerned that this event may represent not merely a coordinated set of separate hacking incidents but rather a successful attack on the security of Twitter itself," he wrote. "As you know, millions of your users rely on your service not just to tweet publicly but also to communicate privately through your direct message service. A successful attack on your system’s servers represents a threat to all of your users’ privacy and data security.”

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Twitter support posted that "we are aware of a security incident impacting accounts on Twitter."

"We are investigating and taking steps to fix it," it continued. "We will update everyone shortly."

Verified accounts were briefly blocked from posting on Twitter later in the evening.

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A spokesperson for Biden's campaign told The Hill that Twitter locked down the presumptive Democratic presidential nominee's account and removed the tweet "immediately following the breach."

"We remain in touch with Twitter on the matter," they added.

Updated: 6:43 p.m.