A fake video of Sam Bankman-Fried, former CEO of cryptocurrency exchange FTX, has been circulating on Twitter in an attempt to defraud investors affected by the exchange’s bankruptcy.

Using programs to create a Bankman-Fried likeness and voice, the poorly crafted “deepfake” video attempted to direct users to a malicious website with the promise of a “giveaway” that would “double your cryptocurrency.”

The video uses what appears to be old Bankman-Fried interview footage and uses voice simulators to create him saying “As you know our F-DEX [sic] The exchange is about to close down, but I hasten to inform all users not to panic. “

The fake Bankman-Fried then directed users to a website saying that FTX “has a giveaway for you where you can double your crypto,” an apparent “double crypto” scam, Users send cryptocurrency double back with a promise that they will receive it.

It is understood that the Twitter account using the handle “S4GE_ETH” has now been suspended compromisecausing the scammers to post a link to the scam website — which now appears to be offline.

The crypto community points out that scammers are able to pay a small fee to be verified by Twitter’s “blue tick” to appear authentic.

Meanwhile, the video was widely mocked in one tweet for its poor production quality user Laughing at how scammers pronounce it “FTX” in video, saying they’re “definitely using […] ‘Effed-X’ from now on.

At the same time, it gave many people the opportunity to criticize the founder of FTX, a user Say “Forged [Bankman-Fried] At least admit that FTX is broke” with YouTuber Stephen Findeisen shared The video says he “couldn’t tell who lied more, the real Bankman-Fried or the fake Bankman-Fried”.

related: Crypto scammers are using black market identities to avoid detection: CertiK

Authorities in Singapore warned affected FTX users and investors on Nov. 19 to be vigilant because websites offering services that promise to help restore cryptocurrency stuck on the exchange are scams that steal information such as account logins.

The Singapore Police Force has warned against such sites that prompt FTX users to log in with account credentials they claim are hosted by the US Department of Justice.

Others are trying to cash in on the attention FTX and its former CEO have received. On Nov. 14, shortly after Bankman-Fried tweeted “What” without further explanation, some noticed the launch of a so-called “meme token” called WHAT.

“Deepfake” videos have long been used by cryptocurrency scammers to defraud unsuspecting investors. In May, a fake video of Elon Musk promoting a crypto platform surfaced on Twitter, using footage from a TED talk from a month earlier.

The video caught Musk’s attention at the time, and Musk responded, “Oops. Definitely not me.