If we come across to an investor who is simply not able to endure any risk, perhaps the best asset we can advise would be US Treasury bonds. Up until now, this has been considered the lowest risk asset by everyone.
In that case, that instrument’s issuer is, whereof its name, the US Treasury, and to think that it could enter a cease payment (default) is simply impossible. But what would happen if you, my investor friend, want to earn a little “extra”… and is willing to accept larger risks in turn of better profitability.