Key takeaways

• Crypto = digital, programmable money. It runs on open networks (blockchains), not on a bank’s private ledger.

• Security comes from cryptography + incentives. Networks use economic rewards and penalties to keep participants honest.

• You can do more than invest. Crypto enables payments, savings, remittances, NFTs, DeFi apps, voting, and more.

• Wallets matter. Choosing between custodial vs. non‑custodial—and hot vs. cold—affects convenience and control.

• Start small and stay safe. Learn the basics, use reputable platforms, and protect your recovery phrases.