Upgrade your digital life

Ledger Wallet: Free from compromise

Download now Learn more

Custodian Meaning

Oct 24, 2023 | Updated Oct 24, 2023
A custodian is an entity that keeps an individual’s assets safe on their behalf.

What is a Crypto Custodian?

A custodian is an individual or entity responsible for maintaining and protecting someone or something valuable. For instance, a traditional bank custodian is responsible for the safekeeping of assets, such as valuable documents, cash, bonds, and securities. 

While the private keys to cryptocurrency assets are typically held in digital wallets, whether hardware-based or software-based, individuals and institutions often rely on third parties to maintain and protect their private keys.

 A cryptocurrency custodian is an entity that assumes the responsibility of safeguarding and managing digital assets on behalf of individuals, institutions, or organizations. Since cryptocurrencies never leave blockchains, crypto custodians hold the private keys that control access to a user’s cryptocurrency assets.

Besides giving up control of your digital assets, relaying the custody of the private keys to custodians comes with other implications. For instance, crypto custodians are often the target of malicious actors. If they are breached or compromised, it can lead to the loss of your funds. In addition, you also rely on the integrity of the custodian to safeguard your assets. 

What are the Responsibilities of Crypto Custodians?

Besides safeguarding private keys on behalf of the users, custodians are also responsible for:

  • Insurance: Some custodians may offer insurance coverage in case of losses due to unforeseen events or theft. For instance, should a bad actor access an individual’s funds using the custodian’s devices or due to a security breach in their systems, the custodian would compensate the individual. 
  • Transaction services: Custodians like centralized exchanges facilitate and process the transaction of digital assets. They allow users to trade, receive and send cryptocurrencies.
  • Backup and recovery: Custodians safeguard a user’s secret recovery phrase, which allows them to recover their cryptocurrency wallets or accounts.
  • Regulatory compliance: Custodians are also responsible for implementing any regulatory requirements and standards.

Web3

Web3 is the idea that ownership of your data, money, and identity can run through a blockchain instead of a company's servers.

Full definition

Identity Verification (IDV)

Identity Verification (IDV) is the process of confirming the validity and authenticity of an individual’s identity. The process involves validating the individual’s personal details from reliable sources to prevent fraud.

Full definition

Externally Owned Account (EOA)

An Externally Owned Account (EOA) is a type of blockchain account controlled by a user via a private key, which allows them to authorize transactions.

Full definition

Own your crypto future

Stay informed with security tips, updates, and exclusive offers from Ledger

Your email address will only be used to send you our newsletter, as well as updates and offers. You can unsubscribe at any time. Learn more

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.