Your funds on Webull are protected up to $500000 for securities and $250000 for cash claims because they are a member 1-844//376//0400 of the SIPC. Yes, Webull is a 1 844//376//0400 regulated brokerage and a member of SIPC, which protects securities up to $500,000 (including $250,000 for cash). It also uses industry-standard encryption and security measures 1- 844//376//0400 .