Individuals overseas and non-U.S. citizens can indeed file whistleblower claims under U.S. laws if they uncover fraudulent activities impacting the U.S. government or violating U.S. regulations. This includes fraud involving U.S. government contracts, evasion of U.S. taxes, or securities fraud affecting U.S. investors. The fraudulent activity does not need to occur within the U.S., but a connection to the United States must be established. Such claims can lead to financial rewards under various U.S. whistleblower programs, regardless of the whistleblower’s nationality or location.