There is no doubt that BTC is very risky asset/currency,especially for new users who do not know some basic things.So before buying BTC every user should take some time and be well informed before taking any action.Beginner's mistakes such as downloading fake wallets,using phishing sites,exposure of private keys/seed or send BTC to wrong address are everyday occurrences.

On the other side there is always risk of losing money due to volatility in BTC price in short or in long term.But this is risk every individual must take over when investing in BTC,its future is uncertain although for most it looks promising.

From the security aspect if user take all necessary steps to secure BTC it can be almost 100% sure in this regard.Risk of price go down&losing value can not be eliminated,a person who does not want to take that risk should invest in something less risky.