While VPNs may protect you from some types of cyber attacks launched by hackers, they don’t protect you from all of them. For example, VPNs may protect you from Man-in-the-Middle (MITM) attacks, remote hacking, Distributed Denial-of-Service (DDoS) attacks and session hijacking, but VPNs will not protect you from hackers who steal encryption keys, or from account compromise, phishing attacks or illegitimate websites.