Further evidence is emerging that Samsung did not respond adequately to information about a serious security flaw affecting approximately 600 million of its smartphones, including its latest flagship Galaxy S6, despite being notified of the issue several months ago.

http://www.smh.com.au/digital-life/consumer-security/questions-over-samsungs-handling-of-security-flaw-in-millions-of-smartphones-20150618-ghqvqn?skin=smart-phone