UPDATE 1.30pm UK: G2A has forwarded the following statement intended to show clearer contrition than in the blog post it published last night. It does not include the words apology or sorry.
"We would be the first to admit that, in our formative years as a company, we took too long to recognise that a small number of individuals were abusing our Marketplace," a G2A spokesperson told Eurogamer. "However, the criticism we received was the wake-up call we needed, and over the last years we have been totally committed to tackling any incidents of fraud on our site. Today we [sic] some of the most sophisticated proprietary anti-fraud AI technology of any online marketplace for digital products."
ORIGINAL STORY 12.30pm UK: After years of shrugging off claims it sold stolen keys, grey-market reseller G2A has admitted to shifting copies which were "illegally obtained".