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During the past six months , IOActive ’s researchers tested mobile applications , robot operating systems , firmware images , and other software in order to identify the flaws in several robots from vendors , including : “ In this research , we focused on home , business , and industrial robots , in addition to robot control software used by several robot vendors , ” said Lucas Apa , Senior Security Consultant at IOActive .
 ( discover vulnerability: identify,  the flaws: vulnerability, robots: vulnerable system, vendors: vulnerable system owner, researchers: discoverer, IOActive: discoverer, During the past six months: time) 
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: identify,  the flaws: vulnerability, robots: vulnerable system, vendors: vulnerable system owner, researchers: discoverer, IOActive: discoverer, During the past six months: time) 