Vitalik: Self-custody is very important, both individuals and the Ethereum Foundation use multi-signature wallets to store most of their funds

ChainCatcher message, Ethereum co-founder Vitalik Buterin stated on social media that self-custody is very important, and social recovery and multi-signature are good methods to achieve this goal.

"I personally use a multi-signature wallet to store most of my funds, and so does the Ethereum Foundation. Once social recovery wallets become mature enough, my suggestion is to use social recovery for hot wallets that store a small portion of funds for individuals or organizations, and multi-signature for cold wallets that store savings for individuals or organizations." (source link)