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Below is a list of 18 vulnerabilities researchers discovered in Fosscam IP cameras : The variety of issues F - Secure researchers discovered means there are multiple ways an attacker can hack one of these devices and use it for various operations .
 ( discover vulnerability: discovered,  vulnerabilities: vulnerability, researchers: discoverer, Fosscam IP cameras: vulnerable system) 
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,  vulnerabilities: vulnerability, researchers: discoverer, Fosscam IP cameras: vulnerable system) 