Don't say that investing is secure for you, there's no secured thing in investments. But once you are able to be with that investment for a long time and you are seeing it's stability in a positive way maybe you might say you are feeling secured with it anyway. I have now a big belief that instead of saving your money in the bank put that in an investment where you can make more money but if that is bitcoin, then just save it.
Investing is purely taking risk and we are just believe our investment will succeed but there is no guarantee it will happen.
It is risky but in this world you can't gain something if you are not going to take a risk. And this is an easy thing for those people that are good in taking risk because they know that it's profitable and they have experience with it. Depending on the investment that they are with, just don't try to invest into ponzi schemes and HYIP's they are not worth of our money.
Bitcoin is the best coin among all digital currencies if you really aspire to enjoy big profits. Let us all invest maximum into this coin for bright future.