MetaMask has unveiled "Transaction Shield," a new service offering up to $10,000 in monthly compensation for transactions that meet its security criteria. The service, currently available to extended users, supports multi-chain interactions and is priced at $9.99 per month, with an annual subscription available for $99. Users can initially try the service free for 14 days. The feature is limited to 100 transactions per month and will soon be available on mobile devices.