The data leak of personal information of hundreds of German politicians and public figures, as well as Russia's breach of the INF treaty, were high on the agenda of a press conference held in Berlin on Monday.

The data breach - one of the largest ever in German history - saw sensitive data from hundreds of politicians and public figures published in December, but only came to light on Thursday.

Addressing criticism that Germany's information security agency, the BSI, had been too slow to act on information in December about the breach, Interior Ministry Spokesperson Soeren Schmidt claimed there had been a "misunderstanding" about the nature of the events.

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