I just encountered a new (to me) scam. It was a (very generic) robocall informing me that an unauthorised overseas transaction for a little over $1,000 had been detected on my Visa (or Mastercard) credit card. It told me to press 1 to proceed. Instead I waited to see if I would get a response by doing nothing and the call timed out and disconnected after a short time. I believe the new generation of scammers are employing self-selecting sucker mechanisms like this to weed out time wasters and focus on the gullible. I pass this on for whatever it may be worth.