In the last few years, when the cybercrooks have speeded their execution plan on making quick money by ransomware attacks. The question for the defenders is what we can do to defend against them? The cybersecurity industry is pitching heavily to leverage deep learning to combat these threats. In this talk, I will cut short the hype and discuss the reality of what deep learning can do for information security (InfoSec)? I will share use cases, data pipeline, algorithms, and code along with challenges faced while deploying them in the wild. This session is aimed to share both breadth and depth about applying machine learning/deep learning for InfoSec.