2450
Prince said there is no evidence the vulnerability , which leaked customer data from memory , was exploited by attackers .
 ( discover vulnerability: was exploited,  the vulnerability: vulnerability, leaked customer data from memory: capabilities, attackers: 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: was exploited,  the vulnerability: vulnerability, leaked customer data from memory: capabilities, attackers: discoverer) 