耳目众多

Explanation: Eyes and ears: refers to people who inquire about the news. Note that many people around. Also means a lot of people spying. 　　Source: Qing Shi Kunyu "Chivalric Heroes" XVI back: "Just a heads eyes and ears of many, fear of leakage, it is inconvenient." 　　Examples: Tan Xiang Gong to go back to be out from my back door. Street ~, afraid of people see through Kozo, there will be rumors of storms. (Ching Lee Green Park "Qiludeng" fifty-back)