report: http://www.checkpoint.com/resources/certifigate/certifigate-report.pdf
http://www.theregister.co.uk/2015/08/06/android_certifi_gate_stagefright_app_vuln/ https://www.blackhat.com/us-15/briefings.html#certifi-gate-front-door-access-to-pwning-millions-of-androids
