@jbaert@mastodon.social alt: Figure 15 from the paper, an illustration with stick figures. Counter-Strike camper detection via side channel leakage: when the attacker is within the camper's frustum, rendering on the camper's computer results invisible differences in the spectrogram. Thus, by entering the frustum and examining the signal, the attacker can detect the ambush, while neither seeing nor being seen by the camper.