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Although Microsoft in March made available a patch for the Windows flaw that EternalBlue exploited , Petya uses other techniques to infect systems , said Jeff Greene , Symantec government affairs director .
 patch vulnerability: made available
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:
 patch vulnerability: made available