Any offer that sounds too good to be true, usually is.

High-pressure sales tactics.

A "guaranteed" investment or an investment without risk.

Significantly higher-than-average returns.

Recommendations based on rumors, tips, inside information.

Unwillingness to provide written information, state securities registration information or verifiable references.

Involvement of another country or an offshore bank.

Unwillingness to let you take time to discuss or think about the investment.