Electronic checks, or echecks, are digital versions of paper checks that enable direct online payment transfers from the payer's bank account to the recipient's account, leveraging the automated clearing house (ACH) network. They offer advantages over traditional checks, including faster processing, lower costs, and reduced environmental impact, while incorporating security features such as encryption and authentication. Despite potential risks like fraud and a dependence on technology, echecks are gaining popularity across various industries for personal and business transactions.