1501
Nevertheless , the two security flaws CRITIFENCE discovered are real and have resulted in a patch from Schneider Electric , the PLC vendor whose products are affected .
 ( discover vulnerability: discovered,  CRITIFENCE: discoverer, the two security flaws: vulnerability) 
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: discovered,  CRITIFENCE: discoverer, the two security flaws: vulnerability) 