What is DeFi Insurance

DeFi insurance (also called protocol cover or on-chain insurance) refers to decentralised protocols that allow crypto users to purchase financial protection against specific on-chain risks — including smart contract exploits, protocol hacks, stablecoin de-pegs, and exchange failures. As DeFi has grown to hold tens of billions in user funds, the market for crypto-native risk protection has developed significantly. WHY DeFi INSURANCE EXISTS Traditional insurance companies cannot assess or underwrite blockchain-specific risks like: Smart contract exploit risk (requires reading Solidity code). Protocol-specific de-peg risk (requires understanding stablecoin mechanics). Cross-chain bridge failure risk. DeFi insurance protocols use community-based underwriting where participants who understand these technical risks stake capital to cover specific protocols — earning premiums in exchange. NEXUS MUTUAL: THE MARKET LEADER Nexus Mutual is a mutual insurance protocol on Ethereum governed and capitalised by its NXM token holders. How it works: Members purchase "Cover" specifying a protocol (e.g., Aave), amount (e.g., $10,000), and duration (30-365 days). Members pay a premium (typically 2-5% annually for established protocols). If a covered smart contract exploit occurs, members can submit a claim. Claims are assessed by NXM token holders who vote on validity. If approved, the claimant receives their covered amount in ETH. Nexus Mutual has paid out millions in valid claims following major protocol exploits including Euler Finance and various other hacks. NXM holders who assess claims incorrectly risk losing staked NXM. OTHER COVERAGE OPTIONS InsurAce: Multi-chain coverage, lower premiums, broader coverage including cross-chain bridge failures. Risk Harbor: Automated claims based on on-chain verification (no human vote needed). Unslashed Finance: Europe-focused DeFi coverage. Centralised options: Some centralised insurers (Evertas, BitSure) offer crypto-specific coverage for institutional custodians. WHAT IS AND ISN'T COVERED Typically covered: Smart contract exploits draining user funds, stablecoin de-pegs (optional add-on), custodian insolvency (centralised cover). Not covered: Private key theft (your own security failure), market volatility losses, rug pulls (intentional fraud rather than technical failure).

Terms in addition to the DeFi Insurance

Blockchain

A blockchain is a subset of a distributed database. The Bitcoin inventors originally prototyped the system in 2008. This modern database is made up of separate blocks that are connected together in a chronological chain. Blockchains may be used to store a wide range of data types. It has mostly been utilized as a public ledger for bitcoin transactions to date. A peer-to-peer network comprised of independent nodes uses a consensus process to ensure the blockchain's security and legitimacy. Each node in the network keeps a public and immutable copy of the data.

2 Factor Authentication (2FA)

2 Factor Authentication is a security measure with two layers. It is used by the majority of cryptocurrency exchanges. To log in, you must provide not only a password, but also a code obtained, for example, from the Google authenticator.

Airdrop

An airdrop is a method of distributing coins. End users can typically obtain coins for free or in exchange for doing a small task, such as subscribing to a newsletter, sending a tweet, or inviting others via a personal affiliate link. Cryptocurrency airdrops — the act of depositing cryptocurrency into public crypto wallets — are utilized as a marketing, liquidity creation, and network bootstrapping technique for many different types of blockchain initiatives.

Altcoin

Altcoin - "alternative coin" - is any kind of digital currency other than Bitcoin. Since the launch of Bitcoin, the world's first digital currency, many altcoins (as well as supporting blockchains) have been created. Altcoin digital currencies share many similarities to Bitcoin, but consistently and have significant differences. There are about 20,000 altcoins, and this number is expected to grow significantly in the coming years. Altcoins often develop Bitcoin features. Ethereum, currently the most widely used blockchain, supports digital contracts and separate applications where Bitcoin does not. Altcoins are also often created to cater to the needs of different users. The Litecoin blockchain, for example, can process payments quarterly for the duration of Bitcoin.

Cold Storage

Cold storage is the way to store cryptocurrency offline. The word refers to the use of offline wallets that are not connected to the internet. Cold storage is the most secure way to keep cryptocurrencies since an offline currency becomes less likely to be hacked and stolen. Paper wallets, printed renditions of private keys, and offline hardware and software wallets are all examples of cold storage.