Card security features work best when several layers are used together. Transaction alerts help you spot suspicious activity quickly, spending limits can restrict potential losses, and 3D Secure adds an extra verification step for many online payments.
Looking at discussions around a
Carding forum also shows why relying on just a CVV or card number is not enough. If payment details are compromised, features like instant card freezing and virtual card numbers can make those details much less useful.
For everyday use, I would prioritize real-time alerts, app-based card controls, 3D Secure, and a separate virtual card for online purchases.