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While we have been observing credential spills and credential - stuffing attacks for many years , the scale of both in 2016 was remarkable , " says Shuman Ghosemajumder , CTO for Shape . "
 data breach: credential - stuffing attacks
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:
 data breach: credential - stuffing attacks