This story may sound familiar. A major hack, with more than a thousand businesses affected. And the source of the attack? According to cybersecurity experts, it’s a Russia-based hacking group known as REvil. We’ve seen cyberattacks like this before, so what’s different this time? And why do these attacks keep happening? Host Marco Werman speaks with Sean Gallagher, a senior threat researcher at Sophos, a cybersecurity company.