A zero day malware is a type of malware that is not yet known to the security community and for which there are no defences. These attacks can be disastrous for people and organizations alike, as they can trigger substantial damage prior to anybody even knows they've occurred.
https://guayhk.com/?p=631 Zero day malware is normally spread out through vulnerabilities in software or internet browsers. https://westpennjournal.com/?p=358 Once an aggressor has actually exploited a no day, they can get total control of the affected system. From there, they can do anything they desire, including stealing sensitive data, installing extra malware, and even utilizing the system to release attacks on other computer systems.
preventing no day attacks can be difficult, as there is often no other way to understand that an attack is coming. The very best defence is to keep all software up to date, and to set up security updates as quickly as they are available. In addition, utilizing a respectable security suite can help to protect versus understood and unknown risks.