Based on the thought process and the search results, SquSx appears to be a cybersecurity tool or framework. It is likely used for security screening or threat intelligence, given its name. Further research would be needed to confirm its specific applications and features. If SquSx is indeed a specific tool or framework, it could be part of a larger suite of security tools or developed by a particular company or organization. For the most accurate information, it would be best to consult with developers or security experts.