You set up a crypto wallet and are given a 12-word seed phrase. A few weeks later, someone contacts you claiming to be from the wallet provider's support team. They say your account has a security issue and ask you to share your seed phrase so they can fix it. What should you do?

No legitimate wallet provider, exchange, or support team will ever ask for your seed phrase. That request, regardless of how it arrives or who appears to be making it, is the scam. The seed phrase is the master key to your entire wallet. Anyone who has it can access your crypto instantly from any device. As the phrase goes: not your keys, not your crypto. Sharing even part of it, or sharing it only through what appears to be an official channel, does not make the request safe. The right response is to end the conversation immediately.