Google has launched a new alert for Gmail's 2.5 billion users about a sophisticated AI-driven phishing scam. The scam involved attackers using fake account recovery notifications and advanced AI to mimic voice calls from genuine Google support numbers. Sam Mitrovic, a Microsoft consultant, nearly fell victim to such a scam and shared the experience publicly. To combat scams, Google has formed the Global Signal Exchange with the Global Anti-Scam Alliance and the DNS Research Federation.