User:The C of E/k

Kneecapping in business is a term for companies intentionally and secretly undercutting competitors without them being aware.

Examples
In 2017, a social media campaign called Sleeping Giants was aimed at targeting advertisers to get them to stop putting adverts on websites that they perceived to be promoting hate speech. The campaign led to a 90% drop in the right-wing media outlet Breitbart News' advertising revenue.