A landmark United Nations cybercrime agreement aimed at curbing offenses that cost the global economy trillions of dollars annually is set to be signed by representatives from dozens of states in Hanoi this weekend, despite criticism over human rights risks.

The convention, which would come into force after it is ratified by 40 states, is an unprecedented move that the United Nations expects will make responses to cybercrime quicker and more effective.

However, activists, major technology companies and the U.N. High Commissioner for Human Rights have warned about possible abuses from its vague language on crime, with some saying it would facilitate rather than combat illegal activities.