Choose a password manager to secure your digital life.
iCloud Keychain is a great program for creating, storing & accessing passwords & credit card details. It's already built into apple devices so you've always got passwords & credit card details at your fingertips. However, many people like to have a secondary password manager as a backup, just in case something goes wrong with your iCloud Keychain data.
Set up text alerts for all of your financial/credit card transactions. Sign up, for free, with your credit card provider or bank to receive text alerts any time you make a transaction. By doing this you might avert a credit card scammer down the line.