A growing chorus within the cryptocurrency community is emphasizing the importance of self-custody for digital assets, reiterating the mantra 'not your keys, not your crypto.' This warning comes in light of ongoing concerns about the security of assets held on centralized exchanges. Prominent voices in the sector are urging users to move their Bitcoin and other cryptocurrencies into self-custody solutions to prevent potential losses. The phrase 'not your keys, not your coins' has been echoed by various users, highlighting the risks associated with leaving assets on exchanges, which are not designed to function as banks. Experts advise that users should secure their assets with private keys that only they control, underscoring the long-standing principle that ownership of cryptocurrency is tied to control of its keys.