Ethereum 2.0: The Upgrade for Scalability, Security, and Sustainability

Multisig wallets enhance security by requiring multiple private keys for transactions, reducing the risk of theft. This mechanism is particularly useful for organizations, as it ensures collective control over funds and protects against single-point failures.

Cross-chain bridges move assets between networks, but their complexity creates weak points. Contract bugs, compromised validators, and flawed custody models have made them frequent targets for major losses.

NFTs (non-fungible tokens) are blockchain-based digital tokens that certify ownership and uniqueness of digital assets-art, music, virtual real estate-enabling secure transfer, provenance, and scarcity.