3274
Only outdated versions of Flash Player , Silverlight , Internet Explorer and Microsoft Edge are the focus of the attack , Zaharia said .
 ( discover vulnerability: said,  Zaharia: discoverer, Microsoft Edge: vulnerable system, Internet Explorer: vulnerable system, Silverlight: vulnerable system, Flash Player: vulnerable system, outdated versions: 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: said,  Zaharia: discoverer, Microsoft Edge: vulnerable system, Internet Explorer: vulnerable system, Silverlight: vulnerable system, Flash Player: vulnerable system, outdated versions: vulnerable system version) 