S$20,000 of the cash deposit in a local bank is insured by Singapore Deposit Insurance Corp. But does anyone know that the following are not insured?

1. foreign currency deposits
2. structured deposits
3. deposits placed as collateral
4. investment products such as unit trusts, shares and other securities

Of great concern is that the foreign currency deposits which many people have placed their money in. I know lots of people has placed their money in such foreign currency deposits due to the very low interest rate for local currency. But these are not insured!

Source: http://www.sdic.org.sg/coverage.html

I have tried to ask around what will happen to my Unit Trusts or investment if the instituion like the bank fails? Logically speaking it should be safe because these are registered under my name. But I am wondering: my saving account is also under my name and if this is so, why is there a risk of it "disappearing" if the bank collapse? Definitely there is a risk to the saving account otherwise why does it need to be insured by the SDIC? So can someone tell me what happens to the unit trusts/ SD / Dual Currencies / whatever if the institution defaults? Have asked around and no one can tell me the answers to my questions.