We must be updated in news and in monitoring every projects were we will invest, it's not new that some founders of any projects try to escape or do exit scam in crypto world so we must be aware in every details, companies, their location, teams and project purpose. DeFi can be like another ICO that produce many scam projects that operates in the past and later on said to do exit scam, so do not plan to invest too long in any projects that are brought  by hype the profit is only sure at the start.