Fidelity Investments recently disclosed a data breach that impacted 77,099 customers, with details made public in an October 9 filing with the Maine Attorney General’s Office. The breach occurred on August 17, 2024, and was discovered two days later on August 19. According to a letter sent to those affected, unauthorized access was gained to two newly established customer accounts. Using these accounts, the attackers were able to view and obtain personal information, although Fidelity noted that account balances or transactions were not viewed.
While Fidelity did not disclose the specific types of data stolen, it has assured affected customers by offering 24 months of free credit monitoring and identity restoration services through TransUnion. The absence of service disruptions during the breach suggests that the attack was likely not ransomware-based, although the form of the attack remains undisclosed.
Fidelity’s spokesperson, when addressing the breach, said the attackers “viewed customer information” without directly accessing customer accounts. Security experts believe that this kind of attack likely exploited a vulnerability in Fidelity’s web applications.
Venky Raju, the field chief technology officer at ColorTokens, noted that the attack vector likely involved a misconfiguration in customer-facing applications, allowing the attackers to establish new accounts and access customer information through them. This method aligns with known vulnerabilities in web security, including those listed in the OWASP Top 10 Web Application Security Risks. Exploiting these vulnerabilities can allow attackers to bypass account security and access sensitive data.
Cybersecurity analysts have speculated that the breach was primarily an information-gathering exercise. According to Sarah Jones, a cyberthreat intelligence research analyst at Critical Start, the motive behind the breach likely involved gathering data that could be used for future attacks.
These could range from identity theft and phishing campaigns to more severe scenarios like ransomware demands. The personal information obtained through such breaches can be valuable on its own, or it can serve as a means for launching further, more sophisticated cyberattacks.
As the investigation continues, Fidelity is working with external cybersecurity experts to understand the scope of the breach and to implement additional security measures. Customers are encouraged to stay vigilant and monitor their accounts for unusual activity. By providing affected users with credit monitoring and identity restoration services, Fidelity aims to mitigate the risks posed by the breach while ensuring that proper measures are put in place to prevent future incidents.
While the exact impact of the data breach remains unclear, it serves as another reminder of the growing threats to personal information in the digital age. The evolving tactics of cybercriminals, particularly in exploiting vulnerabilities in web applications, highlight the importance of continuous security assessments and prompt responses to emerging threats.