eROSITA count rate (per single detector) in the 7–9 keV energy band during the first ten months of the all-sky survey in 6000 s bins. In this energy band, the detector background dominates astrophysical sources. The horizontal dashed red line shows the typical quiescent background, which is globally very stable. Short spikes, whose amplitude rarely exceeds 10–20%, are plausibly associated with low-energy charged particles, which reach the CCD through the thin entrance filters.