This sound comes from Tom Clancy's Rainbow Six Siege, Ubisoft's tactical shooter released in 2015. The defuser objective became one of the game's most recognizable audio cues because players hear it during the highest-pressure moments of a round. Online, the clip spread through gameplay montages, ranked highlights, and short meme edits where any normal action is framed like a bomb-site clutch. It stays popular because even people who do not play Siege can read the sound as instant tension, similar to bomb has been planted in other shooters.