: Dumpper should only be used on networks that you own or have explicit permission to test. Unauthorized access to wireless networks is illegal in most jurisdictions.
(often associated with JumpStart or similar tools) is a utility historically discussed in contexts involving wireless network probing, WPS (Wi-Fi Protected Setup) PIN attacks, and security auditing. The "V-40-1" appears to be a specific version or variant designation. Dumpper V-40-1