The SSL/TLS certificate graveyard: Subdomains that never die
When a forgotten subdomain is still covered by a valid, trusted certificate, it creates a silent entry point for attackers. We call this scenario the "SSL/TLS Certificate Graveyard."
Internet security is essential in protecting sensitive data, maintaining privacy, and ensuring safe online interactions. As cyber threats grow more sophisticated, businesses and individuals risk data breaches, financial losses, and identity theft without strong security measures.
Internet security tools like Attack Surface Monitoring, Certificate Monitoring, OnDMARC, and Cloudflare create barriers against unauthorized access, helping to safeguard personal and business information. By prioritizing internet security, we build trust in online systems, protect digital identities, and foster a safer digital environment for everyone.
When a forgotten subdomain is still covered by a valid, trusted certificate, it creates a silent entry point for attackers. We call this scenario the "SSL/TLS Certificate Graveyard."
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The Sender Policy Framework (SPF) is a crucial email authentication protocol that helps protect your domain from spoofing and phishing attacks. However, SPF has a significant limitation known as the "lookup limit," which can impact your email deliverability and business operations if not managed properly.