The answer to this question depends on the method you use to unblock YouTube. If you use a VPN to unblock YouTube, you will be perfectly safe as you browse around the streaming video giant. This is because the VPN doesn't merely unblock videos for you; it also encrypts all your incoming and outgoing traffic and hides your actual IP address, thus rendering you anonymous online. As a result, a VPN protects you from hackers, malicious third parties, and government agencies. And it will also protect you from the network administrators in your school or place of work.