Wondering how many of you earn interest on your Bitcoin?
Do you mean staking?
Do you feel this is risky, whoever owns the private key owns the BTC ?
For the safety of your funds, don't let others hold/know your keys. Some people use third parties like putting their Bitcoin on them and letting them manage to grow their investment and receive some percentage in returns. We actually get some benefits but what if the site gets compromised, you'll not be sure as well if you can get back your Bitcoin. That will be the risk and it is really risky.