The moment when you trust a third-party with your private key, you already lost your coins. We advocate that Bitcoin gives a user full control over their finances and then we
tell them to use third-parties. Most third-parties have to adhere to strict AML/KYC regulations and in a way, relinquish control to governments. Most of these third-parties work
like banks and they are our main competitor.
Use a hardware wallet and keep control over your own coins.
Store the majority of your coins in cold storage.