Calallen Independent School District suffered a ransomware cyberattack on its networks.
The Information Technology (IT) staff at the district reported problems with the district’s email system.
After the investigation, it realised that malware (malicious software similar to a virus, trojan or worm), had taken control of network servers in a ransomware attack.
Source: https://www.databreaches.net/tx-calallen-isd-networks-hit-by-ransomware-attack/
TPRM report: https://scoringcyber.rankiteo.com/company/calallen-independent-school-district
"id": "cal211391122",
"linkid": "calallen-independent-school-district",
"type": "Ransomware",
"date": "06/2017",
"severity": "75",
"impact": "2",
"explanation": "Attack limited on finance or reputation"{'affected_entities': [{'industry': 'Education',
'name': 'Calallen Independent School District',
'type': 'Educational Institution'}],
'attack_vector': ['Email System'],
'description': 'Calallen Independent School District suffered a ransomware '
'cyberattack on its networks. The Information Technology (IT) '
'staff at the district reported problems with the district’s '
'email system. After the investigation, it realized that '
'malware (malicious software similar to a virus, trojan or '
'worm), had taken control of network servers in a ransomware '
'attack.',
'impact': {'systems_affected': ['Email System', 'Network Servers']},
'title': 'Ransomware Attack on Calallen Independent School District',
'type': 'Ransomware'}