HTG Explains: What is a “Zero-Day” Exploit? (And How to Protect Yourself)

The tech press is constantly writing about new and dangerous “zero-day” exploits. But what exactly is a zero-day exploit, what makes it so dangerous, and – most importantly – how can you protect yourself?

Zero-day attacks happen when the bad guys get ahead of the good guys, attacking us with vulnerabilities we never even knew existed. They’re what happens when we haven’t had time to prepare our defenses.