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Earlier this year , hackers exploited vulnerabilities in the Signaling System No. 7 ( SS7 ) protocols to sidestep two - factor authentication and steal funds from German victims ' bank accounts , according to Germany 's Suddeutsche Zeitung .
 discover vulnerability: exploited
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: exploited