Ebay

Online ad site Craigslist has filed a countersuit against business rival eBay, alleging it used its minority stake to steal trade secrets.

In a complaint filed in a California court, Craigslist challenged allegations made by eBay in April.
EBay is suing Craigslist to "safeguard its four-year financial investment", claiming Craigslist executives took actions to dilute eBay's stake.
Craigslist has accused eBay of competing illegally.

BBC News