As a consequence, the Hamburg DPC ended its proceedings against Facebook's facial recognition technology that were reopened in August after the DPC concluded that Facebook wasn't willing to delete stored facial recognition data of existing users that was gathered without the users' explicit consent.
"For the time being, it is settled," said Kühn.
Facebook couldn't immediately comment on the exchange of source code with the data protection authorities, but a spokesman for a public relations agency representing Facebook said that it is "of course true" that the data was deleted. There are no plans "for the moment" to switch the facial recognition on again in Europe, he said.
Loek is Amsterdam Correspondent and covers online privacy, intellectual property, open-source and online payment issues for the IDG News Service. Follow him on Twitter at @loekessers or email tips and comments to firstname.lastname@example.org