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Third-Party Data Breaches: The Hidden Threat Lurking in Vendor Networks
- The prevalence of third-party data breaches reveals significant cybersecurity vulnerabilities in vendor supply chains, as shown in Black Kite's 2024 Third-Party Breach Report, where breaches through 92 vendors affected 227 companies.
- Undetected supply chain weaknesses may impact over 700 organizations, emphasizing the risks of 'silent breaches' and unseen vulnerabilities within interconnected ecosystems.
- Understanding modern threat behaviors is crucial for cybersecurity providers to assist organizations in strengthening their defenses against systemic risks posed by third-party breaches.
- Common vulnerabilities exploited in vendor supply chains include unsecured remote access, unpatched software, overprivileged access, and lack of real-time monitoring.
- Unauthorized network access stood out as the top attack vector for third-party breaches, with over 50% of such breaches in 2024 attributed to this vulnerability.
- Ransomware attacks, often leveraging third-party vectors, were notably disruptive in 2024, highlighting the importance of implementing an immutable backup strategy.
- Software vulnerabilities and unpatched systems pose ongoing security risks, with zero-day vulnerabilities and internet-facing device weaknesses continuing to be exploited by threat actors.
- Credential misuse, powered by dark web credentials, automated tools, and session hijacking techniques, accounted for 8% of third-party breaches in 2024.
- To combat credential misuse, organizations should enforce phishing-resistant MFA, implement JIT access, monitor login anomalies, and leverage dark web monitoring for compromised credentials.
- Prioritizing supply chain security validation, enforcing strong security requirements in vendor contracts, and adopting a zero-trust model are pivotal in preventing costly third-party breaches.
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