Hawzah News Agency (Tehran, Iran) - "In the face of the enemy's complex practices, our civil defense should ... confront infiltration through scientific, accurate, and up-to-date ... action," Ayatollah Khamenei told civil defence officials, who are in charge of areas including cyber defense.
The television report did not give details of the "infiltration" Ayatollah Khamenei was referring to.
Iranian officials have long warned about Western cultural influences through entertainment, social media and the Internet as a threat against Islamic and revolutionary values.
A decade ago, Iran's nuclear program was hit by Stuxnet, a virus which was deployed by U.S. and Israeli intelligence agencies against a uranium enrichment facility.
Gholamreza Jalali, head of Iran’s civil defense agency, said on Sunday that Iran had recently neutralized a new version of Stuxnet.
"Recently we discovered a new generation of Stuxnet which consisted of several parts ... and was trying to enter our systems," Jalali was quoted as saying by the semi-official ISNA news agency at a news conference marking Iran's civil defense day. He did not give further details.