Target breach is a “watershed moment in third-party attacks,” says Stephen Boyer, CEO of BitSight, a security intelligence firm. Lockheed Martin suffered an attack through a flaw in RSA’s SecurID system. The email addresses of customers who sought support from Twitter, Pinterest, and Tumblr were leaked when attackers breached support services firm Zendesk in February 2013. In 2013, the average breach cost for a US firm was $201 per lost record, according to the Ponemon Institute’s 2014 Cost of Data Breach Study: Global Analysis.”]
Source: https://www.darkreading.com/attacks-breaches/5-steps-to-supply-chain-security