There are many people who have been scammed this last year with the livestreams that they made on YouTube with hacked channels, but really if you think about it, nobody is going to multiply x2 the btc that you send to the wallet that they indicate.
Hack twitter as well, actually the perpetrator is already sentenced for imprisonment.
https://www.theverge.com/2021/3/16/22334421/twitter-hacker-bitcoin-plea-deal-agreement-graham-ivan-clark-three-yearsOur only tool be safe is being knowledgeable, the basic knowledge in investing must be posses and it does not require an expert to detect an obvious scam.