The German Gambling Authority (GGL) has implemented the first advertising prohibition under the Glücksspielneuregulierungstaatsvertrag (GlüNeuRStV), which became effective on July 1, 2023. The ban was applied to an advertisement for an online slot machine provider operating without authorization in Germany. This step marks an important enforcement action in the newly regulated gambling landscape of Germany. The GGL highlighted that the prohibited advertisement originated from an operator without a valid German license, rendering the ad illegal under current regulations. This move signals the authority’s commitment to rigorously enforcing the law to protect consumers from unauthorized gambling offerings. Since the GlüNeuRStV came into effect, the regulator has prioritized the monitoring of advertising practices to strengthen consumer protection and ensure compliance within the gambling sector. The GGL warns operators that violations will be met with strict measures going forward. This development is significant for the German gambling market as the newly implemented regulatory regime aims to create a safer and more transparent environment for players while combating illegal gambling activities.