To use the Greylock Federal Credit Union Mobile Banking App, you must be a Greylock Online Banking user. Greylock’s Mobile App allows you to access your accounts using your existing Greylock Federal Credit Union Internet Banking username and password. Click here to enroll in Online Banking.
Use Card Controls to safeguard your card from fraud, control family spending, block international transactions, and restrict certain merchants!
Take control of your Greylock Debit Card right from your mobile app. With Card Controls, you can: