AT&T: Iranian group claims responsibility for AT&T cyber attack

Iranian Hacking Group Claims Responsibility for AT&T Outage Disrupting North Texas

An Iranian hacking group has taken credit for a cyberattack targeting AT&T that left thousands of North Texas residents without internet service on Monday. The incident, which caused widespread connectivity disruptions, marks the latest in a series of high-profile cyber threats linked to state-backed actors.

The attack, which occurred during a period of heightened political activity in Dallas including the Republican Midterm Convention raised concerns about the vulnerability of critical infrastructure. While AT&T has not publicly confirmed the group’s involvement, the claim underscores the growing risk of cyber operations tied to geopolitical tensions.

Details about the attack’s methods and full impact remain limited, but the outage highlights the potential for cyber threats to disrupt essential services. The incident follows a pattern of Iranian-linked cyber activities targeting telecommunications and other key sectors in recent years. Authorities have not yet released further information on the investigation or potential countermeasures.

Source: https://www.fox4news.com/video/fmc-4yjw1urgdemnzrre

AT&T TPRM report: https://www.rankiteo.com/company/att

"id": "att1788999838",
"linkid": "att",
"type": "Cyber Attack",
"date": "9/2026",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization's existence"

{'affected_entities': [{'customers_affected': 'Thousands of residents',
                        'industry': 'Telecommunications',
                        'location': 'North Texas, USA',
                        'name': 'AT&T',
                        'type': 'Telecommunications'}],
 'description': 'An Iranian hacking group has taken credit for a cyberattack '
                'targeting AT&T that left thousands of North Texas residents '
                'without internet service on Monday. The incident caused '
                'widespread connectivity disruptions and raised concerns about '
                'the vulnerability of critical infrastructure during a period '
                'of heightened political activity in Dallas, including the '
                'Republican Midterm Convention.',
 'impact': {'operational_impact': 'Widespread connectivity disruptions',
            'systems_affected': 'Internet service'},
 'investigation_status': 'Ongoing',
 'motivation': 'Geopolitical tensions',
 'references': [{'source': 'News Article'}],
 'threat_actor': 'Iranian hacking group',
 'title': 'Iranian Hacking Group Claims Responsibility for AT&T Outage '
          'Disrupting North Texas',
 'type': 'Cyberattack'}