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Security researchers discovered a security vulnerability in Android 's app permission model that could allow malicious apps to download onto the mobile device directly from Google Play and launch ransomware , adware , and banking malware , according to a Check Point Software blog post today .
 ( discover vulnerability: discovered,  a security vulnerability: vulnerability, Security researchers: discoverer, app: vulnerable system, allow malicious apps to download: capabilities, Android: vulnerable system) 
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: discovered,  a security vulnerability: vulnerability, Security researchers: discoverer, app: vulnerable system, allow malicious apps to download: capabilities, Android: vulnerable system) 