PSA- My Sam's Club account was hacked. I only use my Sam's Club account to purchase Disney gift cards. About 6 months ago, I let my Sam's Club membership lapse, but I left my stored credit cards attached to the account. Yesterday, someone was able to access my account, renew my membership, and purchase $1000 of Disney gift cards with digital delivery.
Here's the kicker. To try to keep me from seeing and cancelling the purchase, they hit me with an email bomb. I received over 1500 emails in an hour. Their hope was that I wouldn't see the Sam's Club purchase, and that they could log in and claim the digital codes in 2-3 days.
I admit that I reuse passwords, so they could have obtained my login info from any security breach, but this seems like a Sam's Club specific hack. If you have used Sam's Club to purchase Disney gift cards, you may want to consider deleting saved payments. Otherwise you may get stuck blocking and deleting 2000+ email addresses.