Investors, no matter how sophisticated, make mistakes. Even presumed experts like financial advisers and wealth managers investing in good faith still lose money.
Sometimes, however, financial managers are negligent, making it easy for fraudsters to take advantage. In other instances, purported financial managers are the scammers themselves, and those who entrust their money to them fall victim.
https://www.ftadviser.com/personal-pension/2023/08/23/how-an-investigator-can-help-mitigate-the-impact-of-fraud/