Opened my phone after Shabbos to discover (pun intended) a notice about suspicious activity. Turns out someone charged a total of about $4,000 all over, ranging from a Coca-Cola vending machine, up to hundreds of $ at Macy's. Seems like an AU card might have been lost.
Update. I was asked by Discover to file a police report. Got a phone call from the detective today saying that there's video footage of the thief using the card at Macy's (needed additional info from me in order to get a subpoena). Amazingly, the perp that had the card and charged so much on it was actually arrested that Shabbos for shoplifting.