Card-testing protection for Shopify that gives testers nothing

Repeated checkout attempts are blocked automatically, and blocked buyers see no payment methods to test stolen cards against.

Card Testing Protection
Private, Tamper-Proof Counting

Install on Shopify 5.0 on the Shopify App Store

A store owner in his studio checking his store on his phone

Checkouts from one email

Checkout 12:14 PM

Checkout 22:15 PM

Checkout 32:16 PM

Blocked automatically

5.0/5 ratedon the Shopify App Store
$9.99every feature, one plan
Fraud stopped at checkoutbefore any payment
2-minute setupno code, no developer

Card Testing Protection

After 5 checkouts with the same email, phone or address in an hour, that detail is blocked automatically.

Works on express checkouts too, including Shop Pay, Apple Pay and Google Pay.

Repeated checkout detection
Automatic blocking
Payment methods hidden
Works on express checkouts

Private, Tamper-Proof Counting

Only scrambled fingerprints are kept, deleted after a day, and Shopify signs every report.

Safe for privacy-conscious and EU stores.

Only hashes stored
Deleted after a day
Signed by Shopify

A store owner at her desk reviewing her store

Made for stores that card testers find

Card-testing bots run stolen cards through checkout after checkout. Ongoing Defender blocks them automatically once they start repeating, with no manual work.

Blocked after repeated checkouts
Payment methods hidden from blocked buyers
Automatic blocks lift on their own

How to set it up

Step-by-step articles in our help center, with no code needed.

More ways Defender protects your store

Rated 5 stars by Shopify stores

“The app is good and a good value for money. Customer service is responsive. Good solution to stop copying of imagery.”
Shipton Mill · United Kingdom
“I really love this app! The customer support is 100% AMAZING and highly recommend them. :) If you're considering getting this...don't hesitate. Worked immediately after installing. Thank you so much and I love this app!”
Glitter Lambs · United States
“Its a great app to disable right clicks on the website. The support team is also very helpful and quick to respond to questions.”
Moraltive · Switzerland
“Our website was copied by Chinese hackers, and Ongoing Defender has helped us secure our website”
Surf Station Store · United States

“The app is good and a good value for money. Customer service is responsive. Good solution to stop copying of imagery.”
Shipton Mill · United Kingdom
“I really love this app! The customer support is 100% AMAZING and highly recommend them. :) If you're considering getting this...don't hesitate. Worked immediately after installing. Thank you so much and I love this app!”
Glitter Lambs · United States
“Its a great app to disable right clicks on the website. The support team is also very helpful and quick to respond to questions.”
Moraltive · Switzerland
“Our website was copied by Chinese hackers, and Ongoing Defender has helped us secure our website”
Surf Station Store · United States

“The app is good and a good value for money. Customer service is responsive. Good solution to stop copying of imagery.”
Shipton Mill · United Kingdom
“I really love this app! The customer support is 100% AMAZING and highly recommend them. :) If you're considering getting this...don't hesitate. Worked immediately after installing. Thank you so much and I love this app!”
Glitter Lambs · United States
“Its a great app to disable right clicks on the website. The support team is also very helpful and quick to respond to questions.”
Moraltive · Switzerland
“Our website was copied by Chinese hackers, and Ongoing Defender has helped us secure our website”
Surf Station Store · United States

Read the reviews on Shopify

Protect your store with Ongoing Defender

Install in a minute. Protected from the moment you do.

Install on Shopify

5.0 on the Shopify App Store · 5-day free trial