I forgot the name of this fallacy, I read about it in Nassim Taleb’s Antifragile a long time ago, but basically being wrong at spam won’t cause a lot of damage

I forgot the name of this fallacy, I read about it in Nassim Taleb’s Antifragile a long time ago, but basically being wrong at spam won’t cause a lot of damage while being wrong once about a terrorist may cause thousands of deaths