It’s generally not a best practice to add a comment to a post just because a common theme (fraud) or word is used. Your situation is different than the posts above.
Apple Card has three unique numbers. One is the physical card number that is used when you swipe the card or insert the card in a chip reader. This is the least secure method of doing a transaction. Information (including card numbers) from these transactions are easily captured and sold on the dark web.
The second number is the virtual number that you have full access to yourself. This number is manually entered into websites for online transactions. This number can be accessed when a merchants site is hacked and customer data acquired. But worse, it’s frequently given out over the phone, written down, sent in texts etc. Again, easily sold on the dark web.
The last number is the most secure and next to impossible to acquire. Your Apple Pay number. Using a secure tokenization process your iPhone creates a unique one time use number for every transaction. The verification process is extremely secure and eliminates any of the first two scenarios above.
Your Apple Card was probably swiped, numbers captured and has been sold numerous times to fraudulent actors. Not sure who told you that number can’t be changed, because it automatically changes with every transaction. Either you misunderstood what the Goldman support person said, or they communicated misinformation to you. Now you’re making assumptions and statements based on misinformation. Sorry, no easy way to put that.
The transactions you’re seeing are declines that the GS system is catching. Most banks hide that data, but GS shows it and shows that it didn’t go through. That’s considered a feature, but most customers find it a distraction. Capital One has recently started doing the same thing, and their customers are wondering about all the declines they are now seeing. I guess they want to highlight their fraud prevention at work.
The only way that Apple Pay can be compromised is by losing control of your Apple ID. Even then, the 6 digit Two Factor Authentication (code) must be acquired to put a device under their control and enter fraudulently acquired account numbers. The 2FA code is acquired through phishing schemes via email, text/Messages, and voice calls. Usually, it comes in the form someone posing as bank personnel or Apple Support and asking for the code they’ll send you. You agree, they put the device under your account and they’re in your Apple ID and proceed to setup Apple Pay and make fraudulent transactions. Even after the bank shuts down the number(s), attempts will continue to be made days, weeks and even months into the future and these are the declines you’re seeing.
What’s being compromised is not Apple Pay or banking systems. What is being hacked is human nature and the lack of understanding how systems work and being gullible to allow ourselves into being conned out of our security credentials.