On January 21-22, 2015, the Iranian hacker groups Mihan-Cyber Digital Security Team and Khatar Digital Security Team hacked each other’s websites after getting into a fued over which team had the better hacking abilities. The first attack on January 21 featured hacked Sina_Lizard of the Wolf Network Security Team hacking the Mihan-Cyber Digital Security Team and leaving the following image:
This was then followed up on January 22 by Mihan-Cyber member Mahdi Masih hacking Khatar’s website and leaving the following image:
The connection between Wolf Team and Khatar is unclear, but the defacing of Mihan-Cyber’s website is apparently related to its feud with Khatar.
Source: Irancybernews.org, January 26, 2015.