The crypto exchange giant Kraken released a self-custodial mobile wallet called Kraken Wallet, and it even published the app's code at launch. 

Kraken Wallet lets users manage their NFTs, tokens and DeFi positions across Bitcoin, Ethereum, Solana, Optimism, Base, Arbitrum, Polygon and Dogecoin, according to a release from Kraken. Users can also connect to popular decentralized applications and access round-the-clock customer service support. 

The firm also released Kraken Wallet's code on the developer platform GitHub, stating that third-party review strengthens the wallet's security. 

The wallet also eschews all but necessary customer data collection in the name of privacy. Kraken holds no sign-in details, email addresses or know-your-customer information, and the firm …