2460
The issue was first spotted by Trustwave in an 8 port VoIP GSM Gateway from the company .
 ( discover vulnerability: was first spotted,  The issue: vulnerability, Trustwave: discoverer, an 8 port VoIP GSM Gateway: vulnerable system, the company: vulnerable system owner) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( discover vulnerability: was first spotted,  The issue: vulnerability, Trustwave: discoverer, an 8 port VoIP GSM Gateway: vulnerable system, the company: vulnerable system owner) 