Core Points - Recent fraudulent activities involve criminals impersonating legitimate securities firms and private equity fund management companies to deceive investors into downloading fake platforms and transferring funds to specified personal or third-party accounts, resulting in inaccessible funds and inability to log into the platforms [2][6]. Group 1: Fraudulent Activities - Criminals are using fake apps and trading software to lure investors into chat groups and stock recommendation groups, initially gaining their trust and encouraging them to invest [7]. - After small initial investments yield returns, victims are encouraged to invest larger amounts, only to find they cannot withdraw their funds and are subsequently blocked by the fraudsters [7]. - Fraudsters often provide excuses such as "company policy," "audit failure," or "service suspension" to prevent withdrawals, further enticing victims to invest more money [7]. Group 2: Prevention Measures - Investors are advised to only engage with legitimate securities and futures institutions, avoid unsolicited stock recommendations, and refrain from transferring money to unknown personal or third-party accounts [3]. - It is crucial for investors to verify any suspicious activity through official customer service channels of recognized securities and private equity firms [3].