ISIS kill list uses online church directories to target churches, pastors in Texas, New York, California and Florida

ISIS has been going through church directories and adding people's names on their kill list, and many people on that list are now aware of it.

One of them found out when the FBI contacted him and his wife that their names were on the list. The name of their pastor was also on the list.

A member loyal to the Islamic State in Iraq and the Levant (ISIL) waves an ISIL flag in Raqqa June 29, 2014. | Reuters/Stringer

"It appears a Muslim group is trolling the internet and getting church directories and posting names for anyone to kill. Quite frightening," the man wrote in an email to Charisma News. "I have talked to the ***** *** FBI Office numerous times now and they say they do not have suspects but this appears to be a new tactic."

He added that the FBI advised him "the threat could be low."

The list includes about 15,000 people. And unlike the man who was informed by the FBI, many of those who are included in the list have not been contacted by the FBI.

Some of the names were obtained by Circa, which reported that the terror group published the names on encrypted websites. ISIS plans to have those people, mainly from Texas, New York, California and Florida, killed by "sleeper cells or lone wolves."

Circa discovered that 22 out of a sample of 24 people from Texas have not been informed by the FBI that they were on an ISIS hit list.

According to the FBI, they were planning to notify everyone in the list about the threat. However, they admitted some people may not have been informed.

"The FBI routinely notifies individuals and organizations of potential threat information. We perform these notifications so potential victims are aware of possible threats and take appropriate steps," the FBI said, according to Circa.

The bureau emphasized that no person from the list has been killed or attacked by ISIS.

The list also included people from the Jewish community, whose names were pulled from the websites of their synagogues.