Crypto wallet app MetaMask has enabled, by-default, integration of security alerts — powered by security firm Blockaid — for its extension and mobile app users across multiple chains.

Today's release, following a beta phase, aims to ensure that users of the self-custodial wallet automatically receive alerts about potentially malicious transactions.

These security alerts were integrated by default on Ethereum (via extension) in January 2024 and are now available for mobile and extension on the following networks: Linea, BNB Chain, Polygon, Arbitrum, Optimism and Avalanche.

The move mirrors existing security and transaction simulation products within wallets like Rabby or browser extensions like Wallet Guard, Scam Sniffer and others.

In 2024, MetaMask estimates that the security alerts …