A group of hackers affiliated with ISIS are threatening to carry out a cyber attack—dubbed “Message to America”—against a number of targets 2 p.m. EST today. The targets were not identified on ISIS forums and social channels but the hackers are promising something “surprising” that “will frighten America”.

ISIS supporters calling themselves the Cyber Caliphate hacked into the Twitter account of the United States Central Command in January.

Twitter suspended the account detailing the planned attack about 9 a.m. EST.

Soon: Hacker of the supporters association will present: A Message to America, from Planet earth to the digital world