First of all, Alibaba's Arirang app is an enterprise communication tool, which is mainly used for internal communication and collaboration. It provides instant messaging, online meeting, file sharing and other functions, which facilitates the communication and cooperation between employees. However, this does not mean that Arirang app can monitor all activities of employees' mobile phones and computers.

Secondly, monitoring employees' mobile phone and computer activities involves personal privacy and corporate ethics. Enterprises usually need to abide by relevant laws, regulations and privacy policies to ensure that employees' privacy rights are protected. Without the consent of employees and legal authorization, enterprises have no right to monitor employees' personal equipment and activities.

In addition, from a technical point of view, to monitor employees' mobile phone and computer activities, it is necessary to have corresponding authority and access control. Arirang app, as an enterprise application, usually has only limited rights and functions, so it can't obtain employees' private data and monitor operations.

Finally, it is worth noting that even though some enterprise tools claim to be able to monitor employees' mobile phone and computer activities, such monitoring behavior usually needs to meet the requirements of laws, regulations and privacy policies, and requires employees' explicit consent and authorization. In any case, enterprises should respect the privacy and personal dignity of employees and manage their work equipment and activities in a legal, transparent and responsible way.