2969
The researchers identified a core weakness commonly abused in many of the apps called the BIND_VPN_SERVICE , native platform support for VPN clients introduced by Google in 2011 in Android 4.0 .
 ( discover vulnerability: identified,  The researchers: discoverer, Android: vulnerable system, 2011: time, Google: vulnerable system owner, the BIND_VPN_SERVICE: vulnerability, the apps: vulnerable system, a core weakness: vulnerability, 4.0: vulnerable system version) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( discover vulnerability: identified,  The researchers: discoverer, Android: vulnerable system, 2011: time, Google: vulnerable system owner, the BIND_VPN_SERVICE: vulnerability, the apps: vulnerable system, a core weakness: vulnerability, 4.0: vulnerable system version) 