How do I avoid investment fraud?
Investment fraud almost always relies on the same combination: an unlicensed seller, a promise that sounds too good to be true, and pressure to act before anyone can check the story. The 
Securities and Exchange Commission runs 
Investor.gov specifically to give people the tools to verify a person, a firm, or a claim before money changes hands. Checking registration, watching for a defined set of red flags, and knowing where to report a suspected scheme are the core defenses, and none of them require investing experience. What follows draws entirely on SEC guidance and is not a recommendation to buy, avoid, or hold any particular investment.
Verify the person and the firm before sending money
Most investment fraud in the United States is committed by people who are not licensed or registered to sell securities at all, which makes verification the single most useful step available to an investor. Anyone approached with an investment opportunity can search the seller's name for free through Investor.gov's search tool, which draws on Investor Adviser Public Disclosure (IAPD) for investment advisers and FINRA BrokerCheck for brokers and brokerage firms, and which also surfaces disciplinary history. The SEC's background-check guidance walks through exactly how to search, and notes that a search may redirect an investor between IAPD and BrokerCheck depending on the type of professional involved. Before hiring anyone, an investor should also ask for and read the firm's Form CRS relationship summary, which lays out services, fees, conflicts of interest, and any reportable legal or disciplinary history in plain language. Professional titles and certifications are not a substitute for this check: the SEC warns that designations and initials after a name do not necessarily reflect greater qualification, and FINRA's designation directory explains what each one actually requires.
Research the investment itself, not just the pitch
Verifying the seller only addresses half the risk; the product or company being pitched deserves its own scrutiny. The SEC recommends asking direct questions and doing independent research rather than relying on a friend's reference or an unsolicited claim, and reviewing a public company's actual financial filings through SEC EDGAR rather than taking a promoter's description at face value, according to Investor.gov's fraud-avoidance guidance. Unsolicited offers, especially ones originating overseas or promoting thinly traded stocks, deserve particular caution, since they are a common vehicle for pump-and-dump schemes, in which promoters hype a stock's price with false or misleading claims and then sell their own shares once other investors have bought in, leaving the price to collapse. State securities regulators are a second, independent check on both the seller and the offering, and can be reached through NASAA's directory of state regulators.
Learn the shapes fraud actually takes
A Ponzi scheme pays earlier investors with money collected from newer ones rather than from any real profit, which means it depends on a constant stream of new money and collapses once withdrawals outpace new investment or recruitment slows; warning signs include guaranteed or unusually consistent returns, unregistered investments, unlicensed sellers, and difficulty getting money back out. Affinity fraud exploits trust within a shared community — religious, ethnic, immigrant, military, or workplace — where the promoter belongs to or falsely claims to belong to the same group, and many of these schemes turn out to be Ponzi or pyramid structures underneath. Pump-and-dump schemes target retail investors directly through social media and online forums with urgent buy signals and claims of inside information. Across all three, the tells repeat: promises of extraordinary or guaranteed gains, claims that "everyone" is buying in, pressure to send money immediately, free seminars designed to create a sense of obligation, and requests for payment by wire transfer abroad, gift card, or cryptocurrency. The SEC's Red Flags of Investment Fraud Checklist collects these signs in one place and is worth reading before, not after, committing money.
Protect personal information and account access
Scammers increasingly impersonate real, licensed professionals — copying an actual adviser's name, headshot, firm logo, and credentials to appear legitimate. Investor.gov's guidance on protecting your money recommends independently verifying a professional's identity through a background check rather than trusting contact information supplied by the person reaching out, and using the Form CRS to find that firm's actual contact details. It also warns against sharing bank or brokerage account numbers, Social Security numbers, tax forms, passport or driver's license details, or birthdate with unknown contacts, and flags suspicious payment requests — a wire to an individual rather than a firm, a payment routed to a company other than the one being discussed, or a request to pay through a peer-to-peer app or crypto asset — as signs that the money may not be recoverable once sent.
What to do if fraud is suspected
Anyone who believes they have encountered a fraudulent offering, an unregistered seller, or a Ponzi or pyramid scheme should stop communicating with the individuals involved and send no further money. Suspected securities fraud can be reported confidentially to the SEC through its Tips, Complaints, and Referrals (TCR) system, which covers unregistered offerings, Ponzi and pyramid schemes, high-yield investment programs, misappropriation of funds, and market manipulation, among other conduct, as described in the SEC's guidance on reporting suspected fraud. General investment questions or complaints about a professional can also go to help.sec.gov, to FINRA for broker-related concerns, or to a state securities regulator. Anyone unsure where to start can call the SEC's investor assistance line at 1-800-SEC-0330 or use its online question form, referenced in the SEC's Investor Bulletin on selecting an investment professional.