In a VPN case involving more than 3 million yuan, the parties were arrested on charges of "providing tools for intrusion and illegal control of computer information systems."

The lawyer argued that VPNs are essentially encrypted transmission tools, designed to bypass interception, and do not have malicious functions such as intrusion or control of computer information systems. Therefore, even if there is illegality, it does not necessarily constitute a crime.
In the end, the prosecution accepted the relevant opinions, the public security authorities withdrew the case, and the case was dismissed without conviction.
This case also illustrates that the key to technical cases lies in first explaining the principles clearly and then accurately distinguishing between "illegality" and "crime."
Transferred from [Lawyer Chen Peiwen's work]