975
Advisory Notice , Critical Patch Released In most cases , a bad actor has orchestrated a 51 % attack in order to manipulate transactions on a cryptocurrency ’s blockchain for financial gains .
 patch vulnerability: Critical Patch Released
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: Critical Patch Released