2847
In 2015 , he cowrote a study that found a dozen or so popular Android apps – from companies such as the Weather Channel and Groupon – collecting location data about every three minutes .
 ( data breach: collecting,  location data: compromised data, 2015: time, companies: attacker, Groupon: victim, the Weather Channel: victim, Android apps: victim, every three minutes: time) 
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:
 ( data breach: collecting,  location data: compromised data, 2015: time, companies: attacker, Groupon: victim, the Weather Channel: victim, Android apps: victim, every three minutes: time) 