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In their blog post , CRITIFENCE experts claimed to have developed a proof - of - concept ransomware that can use the two issues ( CVE -2017-6032 and CVE -2017-6034 ) to delete a PLC 's ladder logic diagram , if a ransom is n't paid in due time , effectively wiping the PLC 's software .
 ( discover vulnerability: claimed,  CRITIFENCE experts: discoverer, the two issues: vulnerability, CVE -2017-6032: common vulnerabilities and exposures, CVE -2017-6034: common vulnerabilities and exposures, delete a PLC 's ladder logic diagram: 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: claimed,  CRITIFENCE experts: discoverer, the two issues: vulnerability, CVE -2017-6032: common vulnerabilities and exposures, CVE -2017-6034: common vulnerabilities and exposures, delete a PLC 's ladder logic diagram: capabilities) 