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But the operating system is riddled with serious security vulnerabilities that make it easy for a hacker to take control of Tizen - powered devices , according to Israeli researcher Amihai Neiderman .
 discover vulnerability: is riddled
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 discover vulnerability: is riddled