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In a closer examination of the robot ecosystems , IOActive Labs said many of the robot platforms it analyzed use open source frameworks and libraries that suffer from known vulnerabilities such as cleartext communication , authentication issues , and weak authorization schemes .
 ( discover vulnerability: said,  IOActive Labs: 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: said,  IOActive Labs: discoverer) 