With a growing number of Americans being influenced by ISIS due to social media and other campaigns, terrorist threats on US soil are real and have become the FBI's top priority.

Basing their assessment on increased social media chatter, American security agencies are warning of the possibility of ISIS terror attacks in the US in the near future.

In what may be the first public case in New York involving terrorists possibly joining ISIS, authorities arrested three men in Brooklyn who were reportedly preparing attacks in the US.

US security forces thwarted an ISIS-inspired attack on Washington after months of surveillance of the suspect.

Western security agencies are on high alert following hacker attacks and renewed terror threats from ISIS.

Following a warning from the FBI, US security forces remain vigilant as they fear an ISIS terror attack on American soil.

Israeli security forces arrested an American citizen on charges of plotting terror attacks, focusing on Muslim holy sites in Israel.

U.S. officials fear ISIS has reached American soil. Security services are taking preventative action to prevent terrorist attacks.