Cheung To introduces the importance of using cold wallets to store cryptocurrency assets and avoiding exchanges is emphasized in this video, as it prevents potential security breaches. While Ledger has recently launched a recover function, allowing users to retrieve their assets through a KYC process, the centralized approach contradicts decentralization and may not be secure. Trust in cold wallets is discussed, with issues around Ledger's recent controversy prompting users to question the safety of private keys. He recommends using alternative cold wallets such as Trezor and dividing assets between multiple wallets to increase security, along with using regulated exchanges in Hong Kong that offer insurance. Finally, those who find cryptocurrency too complicated or volatile are advised not to invest in it.