2375
The CIA hoards " zero day " vulnerabilities — weaknesses not known to the software 's vendors — instead of revealing them to the likes of Google , Apple and Microsoft !
 ( discover vulnerability: revealing,  them: vulnerability, Microsoft: vulnerable system owner, Apple: vulnerable system owner, Google: vulnerable system owner, The CIA: discoverer, zero day " vulnerabilities: vulnerability, weaknesses: vulnerability, the software 's vendors: discoverer) 
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: revealing,  them: vulnerability, Microsoft: vulnerable system owner, Apple: vulnerable system owner, Google: vulnerable system owner, The CIA: discoverer, zero day " vulnerabilities: vulnerability, weaknesses: vulnerability, the software 's vendors: discoverer) 