[4-Connect Jidazhengyuan: In the fields of artificial intelligence security, anti-quantum cryptography, low-altitude economy and satellite Internet security, it is in the stage of technical investment and preliminary participation] On October 20th, Jidazhengyuan (003029.SZ) issued a change announcement. The company is concerned that the market has recently paid high attention to concepts such as artificial intelligence security, anti-quantum cryptography, low-altitude economy and satellite Internet security. It has been verified that the company is in the stage of technical investment and preliminary participation in the above-mentioned fields, and the proportion of related business revenue is low. It has not yet formed large-scale revenue, and there is significant uncertainty about whether it will have an impact on the company's operating performance in the future.