This article critically evaluates three attempts to overcome the problem of fit between international human rights law (IHRL) and the digital ecosystem, through an expansion of the existing IHRL framework to big tech companies. The attempted expansions considered here include standard-setting initiatives involving the imposition on states and companies – large technology companies and other business enterprises – of certain duties to apply IHRL in connection with potentially rights-infringing business practices. As I discuss below, most of the duties identified and/or developed in this regard within the context of the United Nations Human Rights Council’s Business and Human Rights (BHR) agenda constitute soft law for the time being. Negotiations for a Legally Binding Instrument (LBI) designed to strengthen the applicable legal framework are ongoing, but their prospects of success remain unclear. Another attempted expansion involves self-regulation by big tech companies through corporate policies aimed at incorporating certain IHRL norms into their business practices. The efforts of Meta to incorporate IHRL into its corporate policies and to offer an IHRL grievance mechanism through the operation of the Meta Oversight Body (focusing mainly on protecting freedom of expression, as articulated in the International Covenant on Civil and Political Rights) represent a key case study in this regard. A third attempt to address the aforementioned problem of fit that I consider below involves efforts by special procedures of the Human Rights Council to exercise its standard-setting and monitoring functions in connection with the practices of large technology companies. The work of the Special Rapporteur for Freedom of Opinion and Expression in this area is particularly noteworthy. These three examples of expansion attempts provide useful insights into the potential of IHRL to serve as a legal framework to govern the operations of large technology companies, as well as about the limits of its potential.

The article starts by discussing recent developments in the BHR agenda, including efforts to conclude an LBI. The extent to which this agenda represents a promising avenue for holding large technology companies accountable to IHRL norms is then considered in the second and third parts of the article, which discuss two normative initiatives that derive largely from the BHR agenda: this section specifically examines Meta’s espousal of IHRL as part of its corporate BHR policy, and considers attempts by Human Rights Council special procedures to apply IHRL to technology companies.