Top Highlights

• Multisig (multiple-signature) contracts are smart contract accounts that require multiple valid signatures to execute a transaction. This is very useful for avoiding single points of failure for contracts holding substantial amounts of ether or other tokens
• Multisigs also divide responsibility for contract execution and key management between multiple parties and prevent the loss of a single private key leading to irreversible loss of funds
• INTRODUCTION TO SMART CONTRACTS
• A "smart contract" is simply a program that runs on the Ethereum blockchain. It's a collection of code (its functions) and data (its state) that resides at a specific address on the Ethereum blockchain.
• However they're not controlled by a user, instead they are deployed to the network and run as programmed.

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