What is no day malware?

No day malware is a term used to explain malware that makes use of a previously unidentified vulnerability in software application or hardware. Because they are not discovered by anti-malware programs and standard anti-virus, these attacks are often extremely reliable. Zero day attacks can be extremely tough to defend against, as they frequently use sophisticated strategies and are not quickly detected.

https://cleardex.io/?p=1237 One of the most famous no day attacks was the Stuxnet worm, which was used to target commercial control systems. This malware was able to spread out rapidly and cause considerable damage, leading to the short-term shutdown of an Iranian nuclear center.

No day malware is typically used in targeted attacks, as the assaulters can be sure that their victim will not have any defenses in location. These attacks can be incredibly hard to resist, and can typically cause considerable information loss or damage.