 Naturalized Germans can lose their German citizenship if it is found out that they got it by willful deceit / bribery / menacing / giving intentionally false or incomplete information that had been important for the naturalization process.In June 2019, it was decided to prolong the deadline from 5 to 10 years after naturalization.As of 7 January 2020, German citizens can visit 189 countries without a visa or with visa on arrival.