Latest coverage for Blocked

Blocked is a term in information security that denotes when access to a system, service, website, or resource has been denied, usually for protective reasons. It often occurs when a network or system's security protocols intercept an entity—such as a user, device, or application—and determine that it's untrusted or potentially harmful.

In the context of information security, being blocked is a proactive measure to prevent unauthorized access, data breaches, or the spread of malware. It can result from automated defenses like firewalls that enforce security rules, intrusion detection systems that monitor for suspicious activity, or filtering systems that block known malicious websites. Administrators may also manually block entities if they're identified as a security threat. While blocking is essential for cybersecurity, false positives can occur, where legitimate activities are mistakenly blocked, underscoring the need for careful security policy management.