Opens in a new window Opens an external site Opens an external site in a new window An investigation by Bloomberg into Penlink’s ad-based surveillance system Webloc builds off Citizen Lab research, identifying additional customers of the tracking technology. The findings that Webloc has been acquired by security agencies in a number of countries aligns with potential customers we identified in our April report. Senior researcher Wolfie Christl notes that Webloc “is a powerful mass surveillance t...