Coinbase claims to be improving the security and usability of its Wallet app. On Monday, the crypto firm announced a slew of new features aimed at improving blockchain transparency and security for Wallet users, including transaction previews, token approval alerts, a blocklist of flagged dApps, and a spam token management feature that hides maliciously airdropped assets. Coinbase explained that transaction previews will allow Wallet users to better understand how engaging with a smart contract will affect their Wallet balances before signing, whereas token approval alerts will clearly notify the user if a dApp is attempting to take their NFTs or crypto.