Chase alert: Locked card used, how did this happen?

I have a Chase Ink credit card that I used for many transactions in 2023. About six months later, I stopped using it and switched to another card. To keep it secure, I locked it and stored it in a safe at my apartment.

Currently, I’m traveling abroad and don’t have the card with me—it’s still stored in the locked safe. A couple of days ago, I got an email from Chase with this message:

A transaction on your locked credit card was declined.
Someone tried to use your locked card.
Amount: $1931.70
Merchant: HERTZ RENTAL SYSTEMS
Date: Nov 17, 2024

After this, I went online and locked all my other credit and debit cards that I won’t be using for a while.

Does anyone know how my card information could have been accessed? This is especially confusing since the card hasn’t been used for nearly a year, and the timing is odd—it happened right after I traveled internationally.

The card was likely compromised earlier and the information sold on a list somewhere (like the dark web). It’s also possible someone used a number generator to guess valid card numbers. Either way, the steps you need to take are the same, so it’s not worth overthinking how it happened.

@Hari
Thanks for the insight. Do you think I should request a replacement card?

Dariel said:
@Hari
Thanks for the insight. Do you think I should request a replacement card?

If your card information is compromised, you should absolutely report it to Chase and request a replacement with a new number.

When you say the card is locked, do you mean frozen? Either way, you should dispute the transaction and report the card as compromised to get a new one issued.

Baylor said:
When you say the card is locked, do you mean frozen? Either way, you should dispute the transaction and report the card as compromised to get a new one issued.

Chase has a lock option that prevents transactions from going through. I had it enabled, which seems to work the same as freezing the card.