In cybersecurity, a subdomain takeover refers to a security vulnerability where an attacker exploits a misconfiguration or an unused subdomain to gain unauthorized control. Subdomains are prefixes to the primary domain of a website, typically used to organize and differentiate various sections or services. When a subdomain is abandoned, unlinked, or misconfigured, it becomes susceptible to takeover.

The takeover often involves an attacker pointing the vulnerable subdomain to a server they control. It enables them to manipulate the content, potentially leading to malicious activities such as phishing attacks, spreading malware, or other unauthorized actions. Subdomain takeovers can occur when organizations fail to properly manage their domain infrastructure properly, leaving unused or misconfigured subdomains that malicious actors can exploit. To prevent subdomain takeovers, it's crucial for organizations to regularly review and secure their domain configurations, promptly removing or properly configuring any unused or deprecated subdomains.

ThreatNG is an all-in-one solution encompassing External Attack Surface Management (EASM), Digital Risk Protection (DRP), and Security Ratings, which plays a pivotal role in fortifying organizations against subdomain takeovers. Leveraging advanced Domain Intelligence capabilities, ThreatNG comprehensively analyzes subdomains, DNS records, SSL certificate statuses, and other relevant factors. In assessing Subdomain Takeover Susceptibility, ThreatNG identifies weaknesses in an organization's digital infrastructure, preventing adversaries from exploiting abandoned or misconfigured subdomains. This solution can integrate with other web application security solutions to provide a cohesive defense. For instance, ThreatNG's insights into exposed APIs and development environments can guide web application security solutions in fine-tuning security headers like Content Security Policy (CSP) or X-Frame-Options. By combining ThreatNG's Subdomain Takeover Susceptibility assessments with the capabilities of complementary solutions, organizations can proactively address vulnerabilities and enforce a robust defense. This collaborative approach ensures a well-rounded protection strategy, exemplifying ThreatNG's synergy with other web-specific security solutions in a unified and efficient manner.