Privacy.com

Get a new virtual card for every purchase for free. Set spending limits, make one time-use cards, or cards that only work at certain merchants. Join over 100,000+ users that have saved $100 million by blocking unwanted charges due to compromised cards, hidden fees, and forgotten subscriptions.

Lifehacker says it's like creating a Gmail address like “myname+service@gmail.com”, but for your card number.

Forget about credit card fraud, data breaches, or having to update billing information at all the services you use when a card gets hacked. Foil fraudsters, keep you personal information safe and take back control of your online spending!

Privacy cards may be used everywhere major debit cards are accepted.

Benefits:

• Complete Control - Set max charge limits on each card and close any card with just a swipe.
• Private Payments - Spend anonymously. Use a fake name when you pay. It’s nobody's business what you buy.
• Foil Fraudsters - Cards are automatically locked to the first merchant they're used at. So you're safe even if the merchant gets breached.
• Stop Subscriptions - Set a max charge or make your card single use, so you'll never forget to cancel one of those pesky "30 day free trials."
• Completely free - We make money from merchants, just like a debit or credit card. We won’t ever sell your information or surprise you with any hidden fees.