1) Seek reputable, independent financial advice before you commit to an investment. Never take advice from the company that contacted you directly. If you're still not sure, chat it through with someone you trust.
2) Before you hand over money ensure the firm you use is on the Central Bank of Ireland Register to make sure they’re authorised to provide investments. If they’re not on here, or a similar register in the country they are based, you won’t be protected if things go wrong.
3) Be cautious of all unexpected calls, emails and text messages. Don’t assume they’re genuine, even if the person seems to know a lot about you or your previous investments.