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Card Testing Fraud – Continued

If you are a OnceHub customer trying to pay for your account, read below to learn why we have temporarily suspended payment via credit cards.

If you are not a OnceHub customer and see a charge from OnceHub on your credit card statement, your card details were stolen from another merchant and were used by fraudsters on OnceHub in order to test if the card still works so that they can use it for bigger purchases. You must notify your financial institution and cancel your card immediately.

If you are interested in the bigger story behind this incident, you can read our CEO’s summary and perspective.

Last week we posted an update on the credit card testing fraud that has impacted OnceHub. Unfortunately, this was not the end. It was only the beginning.

After a few quiet days the fraudsters came back with a massive and very sophisticated bot attack. The entire company has been working around the clock to fight this attack, refund transactions, respond to cardholders whose cards were compromised and develop additional measures to curb the attackers.

Due to the magnitude of the attack and its sophistication, it became almost impossible to differentiate between real transactions and the fraudulent transactions. We are working diligently to refund all transactions but it is possible we may have missed some.

It is our intention to fully refund all transactions. Our heart goes out to the innocent victims whose cards were stolen. We are both victims of these fraudsters.

If you do not see a refund from us within five days of the charge was made, please contact us at

4 comments… add one
  • Not a customer and never heard of the site until I had a fraudulent $15 charge pending 12/18/19 from Oncehub on my debit card. I called the bank, told them what was going on and cancelled the card. My bank takes 7-10 business days to issue a new card. Bad timing right before Christmas but what can you do.

    Call your bank. Tell them it’s an unauthorized charge. They’ll investigate it and take care of it. No point in waiting the 5 days to see if the charge is reversed since your card info is already compromised and you will have to be issued a new card regardless. You might want to consider making an ATM run before contacting the bank to avoid having to stand in line with a teller to withdraw cash.

    Good luck y’all. Hope there aren’t too many last minute shoppers here. On a positive note, there aren’t too many better reasons for not having a gift than having your card cancelled due to fraud. I feel some but not much sympathy for Oncehub since they created the software that caused this extra aggravation.

    • Hi P, we want to clarify that our software was not involved in the breach of your data specifically. Like you, we are an injured party in this, as the fraudsters stole your payment data from another source, then came to us with your payment data and purchased in the same way our actual customers would – except they used a bot to do this quickly and at high volume.

      We have exposed their fraudulent actions and will not rest until every last charge is seen to by our team. Since we caught this very early, we are hopeful our actions will have prevented you and others from suffering massive credit card fraud, with much higher charges.

  • Same story here, never heard of this company before I noticed I had two unauthorized transactions on my business account. Both cards associated with our account were compromised which virtually cripples our ability to complete day-to-day transactions. Plus changing out all of our automatic payments for our business is quite extensive.
    I also can’t imagine how much negative impact this will have on this company, OnceHub, but I am certain it will cost them money and business as well.
    I hope that there is accountability by the merchant with whom the data was compromised.
    Best of luck OnceHub.

    • Hi Michael,

      We are sorry to hear about the trouble this has caused you and your business.

      You are right about the negative impact it has had to our business. We have suffered immensely from this but we will be OK. This incident brought to light the commitment and resourcefulness of our great employees who worked together around the clock to fight this massive attack. We are coming out of this a stronger and more resilient company. Thank you.


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