Complex sentence: They also operate the Bank of Bolias, which invested in a new security system prior to 2373, where the Bolian government authorized the Ferengi Gaming Commission to manage their gambling emporiums.
Split into simpler sentences: They also operate the Bank of Bolias, an institution that invested in a new security system some time prior to 2373. At that time, the Bolian government authorized the Ferengi Gaming Commission to manage their gambling emporiums.