I didn't know the word internecine, it's actually really useful and relevant in many situations, thank you!
> internecine, adj.:
> destructive to both sides in a conflict.
> internecine, adj.:
> destructive to both sides in a conflict.
And inter is apparently the origin of intel, which is topical, and suggests Intelnecine, adj: destructive to all factions within Intel, or any company with a destructive amount of in-fighting.