Avast is a big name in the Anti-Virus industry. I use this software to protect from malware and harmful software. The software keeps my PC clean from any kind of viruses, trojans, and malware. Now, I am thinking to buy its VPN service, I have no much idea about VPN except it protects from hackers, online threats and cyber-attacks. I read its detailed review here, but still confused it is worth it or not.