ChimeIn: A Secure and Moderated Social Networking Platform

Social media platforms have transformed digital communication but continue to face persistent challenges related to content safety, user security, and trust. Unregulated or insufficiently moderated environments often enable harmful content, misinformation, and malicious activity. ChimeIn is designed to address these issues by providing a secure and community-governed social networking platform featuring automated content moderation and context-aware authentication. The system integrates predefined community rules with intelligent text analysis to filter harmful or inappropriate posts before publication. In addition, ChimeIn employs context-based authentication—using device, location, and browser parameters—to detect suspicious login attempts and enhance account security. The platform architecture emphasizes modularity, user privacy, and real-time decision making. Evaluation across moderation, classification, and authentication components demonstrates strong performance, with an overall moderation accuracy of 91.25%, category classification accuracy of 82%, and suspicious login detection accuracy of 93.3%. The results show that ChimeIn effectively improves user safety and reliability while maintaining a seamless social media experience.