Authorities, including the FBI, are issuing urgent warnings to iPhone and Android users regarding a surge in smishing scams related to toll road payments. Users are being sent fraudulent text messages claiming unpaid tolls from services like E-ZPass and Peach Pass, prompting recipients to click on malicious links. The FBI advises individuals to delete any suspicious messages immediately to avoid becoming victims of these scams. Over 10,000 domains have been registered for these smishing campaigns, making them difficult to combat. Officials remind the public to remain vigilant and informed about how to recognize and steer clear of such scams.