What is Hosted Wallet

A hosted wallet (also called a custodial wallet) is a cryptocurrency wallet where a third-party service typically a centralised exchange like Binance, CoinDCX, Coinbase, or a dedicated custody service manages the private keys on behalf of the user. The service hosts the wallet infrastructure and holds custody of the underlying cryptocurrency, while the user sees a balance in an account interface.

HOW HOSTED WALLETS WORK

When you create an account on a cryptocurrency exchange and deposit crypto, the exchange takes custody of your funds by moving them into their own wallet infrastructure. Your exchange balance is an accounting entry in the exchange's database representing their obligation to return equivalent funds to you upon request. The private keys that control the on-chain funds belong to the exchange, not to you directly.

ADVANTAGES OF HOSTED WALLETS

Ease of Use: No seed phrase management, no hardware wallet purchase, no technical knowledge required. Simply log in with username and password, optionally with 2FA.
Account Recovery: If you forget your password, standard account recovery processes (email verification, KYC) can restore access impossible with self-custody where lost seed phrases mean permanently lost funds.
Fiat Integration: Seamless conversion between crypto and INR/USD.
Tax and Reporting: Many exchanges provide annual transaction reports simplifying crypto tax calculations.
Trading Access: Full exchange functionality spot trading, futures, staking products directly accessible.

RISKS OF HOSTED WALLETS

Counterparty Risk: The most serious risk if the exchange becomes insolvent, hacked, or fraudulent, your funds may be lost or frozen. FTX's collapse ($8B+ in customer fund losses), Celsius, Voyager, Mt. Gox, and WazirX's 2024 hack all demonstrate this risk.
Regulatory Freezing: Government investigations or regulatory actions can freeze exchange accounts.
Withdrawal Restrictions: Exchanges may impose withdrawal limits or temporary halts during liquidity crises.

REGULATORY CONTEXT

FATF distinguishes between hosted wallets (maintained by VASPs subject to KYC/AML regulations) and unhosted wallets (self-custody wallets controlled directly by individuals). Many regulatory frameworks specifically target hosted wallet providers for compliance requirements.

Terms in addition to the Hosted Wallet

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.