Facebook has apparently been using a company founded by veterans of a secret cyber intel group within the Israel Defence Forces (IDF) to spy on users and destroy competition. Details have been reported by Haaretz, which cites the findings of a US lawsuit against the social media giant. The scandal involves Israeli firm Onavo which was bought by Facebook in 2013. The suit filed by the US Federal Trade Commission (FTC) a few days ago claims that Onavo’s technology played a central role in Facebook’s efforts to thwart its competitors. Describing Onavo as a “user surveillance company”, the FTC cla…