Apple Wallet Compromised?

I think that my Apple Wallet may have been compromised.

My physical bank cards stay in my wallet, in my cupboard at home. They have been there for months and no one has access to them.

Recently, while in Cape Town, SA, I received text messages from my bank showing that there were multiple small transactions going off my account. I called my bank to query that transactions and they advised that this was a common way for thieves who have your card information to test whether transactions are successful or not. They run a few small transactions before attempting a large one. I cancelled my card. Crisis averted. But, the next day, the same thing happened on another card I had. This time, a much larger amount. Different card, different bank.

Both of the cards in question were in my wallet at home, in Johannesburg. And both of the cards that were compromised were loaded on my Apple Wallet. None of my cards that were not in my Apple Wallet were affected or had to be cancelled. Only those in my Apple Wallet

Given this above information; is it possible that my Apple Wallet was compromised?