Never store crypto in hot wallets or browser extensions. Use Ledger, Trezor, or Coldcard for holdings you want to secure. Cold storage equals zero attack surface for hackers.
Before depositing into a DeFi protocol, check if it has been audited by Consensys Diligence, OpenZeppelin, or Certora. Unaudited protocols are 50x more likely to be exploited.
If an APY looks too good (50%+), it's unsustainable or risky. Either the protocol will collapse or the token will hyperinflate, erasing your gains.
Don't keep all funds on Ethereum. Use Solana for lower complexity, Arbitrum for rollup security, or Bitcoin for simplicity. Chain risk diversification is essential.
Start with small amounts, test with minimal capital, and never deposit more than you can lose. Security takes discipline, but it protects wealth that took you years to build.
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