A股网络安全概念震荡反弹，数字认证20CM涨停，熙菱信息、浩瀚深度、三六零、锐捷网络、华胜天成、飞乐音响等跟涨。

Group 1 - The A-share cybersecurity sector experienced a volatile rebound, with notable stocks such as Digital Certification hitting a 20% daily limit increase [1] - Other companies that saw gains include Xiling Information, Haohan Depth, 360 Security Technology, Ruijie Networks, Huasheng Tiancai, and Feile Audio [1]