783
In Big Blue 's defense , this is far from the first time a company has had to pull a security patch that was found to pose stability concerns .
 patch vulnerability: has had to pull
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: has had to pull