The average user cannot obtain a crypto loan without collateral, with the exception of flash loans, which differ significantly from traditional loans. Unsecured crypto lending is primarily conducted among large cryptocurrency companies, and it is a risky activity that contributed to the 2022 cryptocurrency market crash. For retail crypto investors, overcollateralization is the norm, as it eliminates the need for background checks or creditworthiness assessments. Undercollateralized loans are generally not recommended due to their higher interest rates and potential credit checks. In conclusion, retail investors must provide collateral to borrow crypto, while unsecured lending is reserved for major industry players.