2839
Four of the five are authentication - related flaws , the most serious of which involved passwords either stored in clear text or reachable by accessing a particular URL .
 ( discover vulnerability: are authentication - related,  flaws: vulnerability, passwords either stored in clear text: capabilities, reachable by accessing a particular URL: capabilities) 
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: are authentication - related,  flaws: vulnerability, passwords either stored in clear text: capabilities, reachable by accessing a particular URL: capabilities) 