Forrester says hackers carefully pick their victims, learn their processes, and test for vulnerabilities. When they successfully infiltrate a target, they often go undetected for weeks or months, which allows them to exfiltrate masses of sensitive data. Credentials were the second most compromised data type and third most common attack vector reported by North American and European security pros who suffered a breach in 2016. Hackers revived what is largely perceived as a dormant social media site, stealing as many as 427 million customer records.”]