Nobody is safe even the FIAT money I think but for me Bitcoin is more safer than FIAT in terms of robbery, so in short nothing is safe it's just how you can safe it.
How are you determining whether or not something is safer that BTC, etc? Biitcoin I though would be safer because there is no way to beat the system and take it. Unles your account is hacked and such, there is not much of a way to loose it. The same can happen to FIAT and all other coins. Just wondering what basis you are using to make this statement.
But when considering fiats, crypto currencies are basically safer by its cryptography security feature. No random hacking will be possible. Similar to fiats, we must secure our assets in cryptocurrencies with a strong password and other security measurements like 2fa. Bitcoin is stronger a bit than fiats or gold or any similar assets against robbery/hacking.
Yes, for me also, crypto currencies is more safer compare than FIAT no doubt about that because you can't literally touch it and just steal and run, My idea is hypothetical and no concrete basis as of now but it can happen someday even if we deny it, people are great making something new in everything, and if it happens(we hope not) we will be shock in an instant just like breaking the most secured prison or bank. No one can predict the future for Bitcoin or any other virtual thing, I think in My own perspective.