Yes. You cannot access your cryptocurrency without your private keys and an interface that accesses a blockchain. All wallets can store keys, but only hot wallets can access the blockchain, so it's important to keep your keys off your hot wallet until you need them. Take a Few Minutes to Get Organized It is possible to search for a Bitcoin wallet address through a Bitcoin explorer. However, finding a crypto address does not mean that you also know the identity behind it.
Finally, hardware wallets are the most secure forms of Bitcoin wallets because they store their Bitcoins on a physical peripheral (like a USB drive) that is plugged into a computer. By storing the private key on a physical device, it is least susceptible to being compromised because it is rarely connected to the internet. Instances of Bitcoin theft are much lower with hardware wallets than they are with mobile and web wallets. How to: Backup Bitcoin Wallet I can’t seem to back up my Bitcoin wallet