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A security vulnerability in Intel Corp. chips first disclosed last week looks far worse than initially thought , as hackers can hijack Intel processors without even needing a password .
 ( discover vulnerability: disclosed,  last week: time, security vulnerability: vulnerability, Intel Corp. chips: vulnerable system, hackers can hijack Intel processors: 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: disclosed,  last week: time, security vulnerability: vulnerability, Intel Corp. chips: vulnerable system, hackers can hijack Intel processors: capabilities) 