741
" Everyone 's accounts protected by text - based two - factor authentication , such as bank accounts , are potentially at risk until the FCC and telecom industry fix the devastating SS7 security flaw , " Lieu said in a statement published Wednesday .
 ( patch vulnerability: fix,  FCC: releaser, telecom industry: releaser, security flaw: vulnerability, SS7: vulnerable system) 
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:
 ( patch vulnerability: fix,  FCC: releaser, telecom industry: releaser, security flaw: vulnerability, SS7: vulnerable system) 