CyberSecurity news

FlagThis

@www.dhs.gov //
Following U.S. airstrikes on Iranian nuclear sites on June 21, 2025, a wave of cyberattacks has been launched against U.S. organizations by Iran-aligned hacktivist groups. Cyble threat intelligence researchers reported that in the first 24 hours after the strikes, 15 U.S. organizations and 19 websites were targeted with DDoS attacks. Groups such as Mr Hamza, Team 313, Keymous+, and Cyber Jihad have claimed responsibility, targeting U.S. Air Force websites, aerospace and defense companies, and financial services organizations.

The attacks have been framed as retaliation for U.S. involvement in the ongoing Israel-Iran conflict, with the groups using the hashtag #Op_Usa to deface websites and leak credentials. The U.S. Department of Homeland Security (DHS) issued a bulletin on June 22, 2025, warning of likely low-level cyber attacks against U.S. networks by pro-Iranian hacktivists, noting that cyber actors affiliated with the Iranian government may also conduct attacks. This warning highlights the escalating cyber warfare activity between the two nations.

In a notable incident, Donald Trump's social media platform, Truth Social, was paralyzed by a DDoS attack just hours after the U.S. airstrikes. The hacker group “313 Team” claimed responsibility, stating the attack was in response to President Trump's announcement of the successful strikes on Iranian nuclear sites. The DHS emphasizes that this cyber activity reflects an increasing shift of geopolitical tensions into the digital space, further intensifying the cyber security concerns.
Original img attribution: https://cyble.com/wp-content/uploads/2025/06/Cyble-Blogs-Hactivists.png
ImgSrc: cyble.com

Share: bluesky twitterx--v2 facebook--v1 threads


References :
  • cyble.com: The U.S. has become a target in the hacktivist attacks that have embroiled several Middle Eastern countries since the start of the Israel-Iran conflict.
  • thecyberexpress.com: Iran-aligned hacktivists launched DDoS attacks against 15 U.S. organizations and 19 websites in the first 24 hours after the U.S. bombed Iranian nuclear targets on June 21, Cyble threat intelligence researchers reported today.
  • www.dhs.gov: U.S. entry into the conflict has drawn retaliation from hacktivist groups, with attack claims ranging from credible to questionable. In the wake of the U.S. involvement, the Department of Homeland Security (DHS) on June 22 that “Low-level cyber attacks against US networks by pro-Iranian hacktivists are likely, and affiliated with the Iranian government may conduct attacks against US networks.
  • www.esecurityplanet.com: US Warns of Iranian Cyber Threats as Tensions Rise Over Middle East Conflict
Classification:
  • HashTags: #Op_Usa #DDoS #Hacktivism
  • Company: Cyble
  • Target: US organizations
  • Attacker: Iran-aligned hacktivists
  • Feature: DDoS attacks
  • Type: Hack
  • Severity: Medium