Lena frowned. "Another app?" she muttered.

His reply came instantly: "Good. Now let's fix the production timeline."

The official page appeared—clean, professional, bilingual. She clicked the blue "Download for Windows" button. A file named WeCom_4.1.0.6006.exe dropped into her Downloads folder.

Then, her Chinese counterpart, Mr. Chen, sent a simple message: "We need to switch to WeCom. It’s the professional version of WeChat. You can get it on your PC."

But that evening, with a cup of coffee steaming beside her keyboard, she opened her Windows 10 laptop. She typed into her browser: "WeCom for Windows 10 download."

The installer launched in seconds. A sleek progress bar filled up as the window displayed a promise: "Secure. Encrypted. Built for teams." Within two minutes, the icon—a blue abstract chat bubble with a white "V"—appeared on her desktop.

She double-clicked. The login screen asked for a phone number. She typed hers, received a verification code, and suddenly, she was inside.