You have to rely on yourself in the world of Bitcoin. In the banking world, where you have your money deposited in your account, the bank is responsible for the deposit and you will not be responsible here. If Bitcoins steal someone from you, they will be irreversibly gone as a result of incorrect security. This may be a theft or a disk error where your bitcoins are stored. If you own a large number of Bitcoins, i recommend that you use the Trezor wallet and use Cryptosteel to save words with Bitcoin Seed. Also a good choice is Ledger Nano. Remember, security is over everything in this crypto world.