723
The issue of unserialization was first uncovered back in 2009 , and since then , vulnerabilities have been recognized in which the integrity of PHP systems can be compromised , such as CVE -2017-12934 , CVE -2017-12933 , and CVE - 2017 - 12932 .
 discover vulnerability: uncovered
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: uncovered