The "Great Firewall" is a colloquial term for mainland China's internet censorship system. It's part of the Golden Shield Project, also called the National Public Security Work Informational Project. Both legislative actions and enforcement technologies are used to regulate the country's internet. The Great Firewall blocks foreign websites, apps, social media, VPNs, emails, instant messages and other online resources deemed inappropriate or offensive by authorities. This ranges from vulgar content such as depictions of violence and pornography to more politically-sensitive materials that promote democracy or depict the ruling Communist Party in a poor light. Western social media (Facebook, Twitter), user-generated content sites (Youtube), and tools (Gmail) are blocked almost wholesale unless they agree to comply with Chinese laws and regulations. A combination of technologies are used in combination by government-run internet service providers and domestic internet companies to censor content, including keyword filtering, IP address blacklists, DNS poisoning, packet inspection, and manual enforcement.
No – the sandbox is the first part of a trust decision engine. After an unknown application has been placed in the sandbox, Internet Security will also automatically queue it for submission to Comodo labs where it will be analyzed by our technicians. If it is found to be harmless then it will be added to the global safe list that will be downloaded by all Internet Security users in the next round of updates. Once it is added to the safe list, the application will no longer be run in the sandbox by Internet Security. If it is found to be malicious then it will be added to Comodo's list of malware signatures and will be deleted after the next round of updates.