LexisNexis Legal & Professional has confirmed that hackers breached its servers and accessed a portion of customer and business information, following the leak of approximately 2GB of stolen files by a threat actor known as FulcrumSec. The company, a global provider of legal, regulatory, and business intelligence solutions serving clients in over 150 countries, acknowledged that an unauthorized party accessed a limited number of servers. According to LexisNexis, the compromised data primarily consisted of legacy information from prior to 2020, including customer names, user IDs, contact details, product usage data, survey responses with IP addresses, and support tickets. The company emphasized that the exposed data did not include highly sensitive information such as Social Security numbers, financial data, active passwords, or customer search queries, and stated that there is no evidence its products or services were directly impacted. The threat actor claims the breach occurred on February 24 through exploitation of the React2Shell vulnerability in an unpatched React frontend application connected to the company’s AWS environment. According to FulcrumSec, they exfiltrated 2.04GB of structured data from AWS infrastructure, including hundreds of Redshift and VPC database tables, AWS Secrets Manager entries in plaintext, millions of database records, and tens of thousands of customer accounts. The attacker further alleged access to cloud user profiles containing personal and professional information, including over 100 users with .gov email addresses tied to U.S. government employees, federal judges, Department of Justice attorneys, and SEC staff. They also criticized the organization’s cloud security posture, citing excessive permissions assigned to an ECS task role with read access to sensitive secrets. In response, LexisNexis has notified law enforcement authorities and engaged external cybersecurity experts to assist with forensic investigation and containment efforts. The company has informed affected current and former customers and stated that the intrusion has been contained. This marks the second disclosed security incident involving the company within a year, highlighting ongoing risks associated with cloud infrastructure misconfigurations, vulnerable web applications, and identity and access management weaknesses. The incident underscores the importance of timely patching, strict privilege controls, and proactive cloud security monitoring to prevent similar breaches in enterprise environments.
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