The early warning and emergency mechanism of overseas trademark risks of enterprises includes: ① establishing a trademark infringement database, searching and collecting similar infringing trademarks, and confirming whether these similar trademarks have been authorized. If they are authorized, they can file an invalid application. If it is not registered, you can apply for the same or similar trademark protection or raise objections as much as possible during the publicity period, so that it cannot be authorized. This is a defensive trademark system. ② Make a good solution to trademark infringement in advance. If infringement is found, immediately start the solution to minimize losses; ③ Do a good job in the company's own trademark management and trademark layout at home and abroad. Option d is not included.