Can US residents buy STX?

Are US residents allowed to purchase STX, the native token of the blockchain platform Stacks? If so, what are the regulations and requirements that need to be followed to ensure compliance with securities laws and regulations in the United States? Are there any restrictions or limitations in place that could affect the ability of US residents to acquire and hold STX? Additionally, how can US residents safely and securely acquire STX while also protecting themselves from potential risks and scams?