Here are some tips provided by the Securities and Exchange Commission that may help an investor in conducting proper due diligence before investing.
Never make an investment based solely on the recommendation of a member of an organization, or religious or ethnic group to which you belong. Investigate the investment thoroughly and check the truth of every statement you are told about the investment. Be aware that the person telling you about the investment may have been fooled into believing that the investment is legitimate when it is not.
If an investment seems too good to be true, then it probably is. Similarly, be extremely leery of any investment that is said to have no risks; very few investments are risk-free. The greater the potential return from an investment, the greater your risk of losing money. Promises of fast and high profits, with little or no risk, are classic warning signs of fraud.
Fraudsters often avoid putting things in writing, but legitimate investments are usually in writing. Avoid an investment if you are told they “do not have the time to reduce to writing" the details about the investment. You should also be suspicious if you are told to keep the investment opportunity confidential.
Just because someone you know made money, or claims to have made money, doesn't mean you will too. Be especially skeptical of investments that are pitched as "once-in-a-lifetime" opportunities, particularly when the promoter bases the recommendation on "inside" or confidential information.
If you receive an unsolicited e-mail from someone you don't know, especially if it contains a "can't miss" investment, your best move is to pass up the "opportunity" and forward the spam to the SEC at enforcement@sec.gov.
This list is not all inclusive—it seems that fraudsters get more clever all the time—but it’s a good place for investors to start learning what to watch out for when doing due diligence. If you’re interested in protecting yourself further, read this comprehensive report: What Due Diligence Is, Why It Matters, and How To Do It Well.