From Truthfully.com:
Imagine answering a phone call and a friendly voice asks, “Can you hear me?” It sounds harmless enough, right? Wrong! This seemingly innocent question has become a new weapon in the arsenal of scammers. Phone scams are skyrocketing, putting millions at risk of having their money and identities swiped by crafty criminals. Let’s dive into the details of this tricky phone scam — and how you can protect yourself.
So how does this scam work? It starts with that simple question designed to catch you off guard: “Can you hear me?” The goal? To get you to say “yes.” Scammers want to record that single word. Once they have it, they can use your voice to unlock online accounts, authorize payments, or even steal your identity. All they need to do is play your recorded “yes” to confirm a login, make a purchase or agree to a service.