I have heard several cases of hacking and theft of bitcoins, but they all occurred through the fault of the owner, unfortunately. Therefore, I do not advise anyone to neglect the safety of their own investments and choose only proven wallets.
Yes that's true, but even how many times it happened still bitcoin recovered and more investors are supporting it more and investing unto it. Just always secure your private key as much as possible this is very important. Don't just rely on back up save it to your USB or in a paper wallet as well. So even you pc or desktop suddenly get broken you can still retrieve your wallet, private key and password as well.