1893
Most if not all online services have had their fair share of security issues , and most of them managed to get discovered and fixed by people like Ormandy .
 ( discover vulnerability: have had their fair share,  security issues: vulnerability, not all online services: 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: have had their fair share,  security issues: vulnerability, not all online services: discoverer) 