A zero-day exploit finds and targets hardware or software program vulnerability or vulnerabilities which are still unknown to hardware and software or antivirus vendors. The attackers, then exploits these unknown security flaws and uses them for cyber-attacks. These attacks have high success rates because of zero defense available to the security flaws present in the software that is targeted, thus making these attacks a severe security threat.
The common intrusions happen on Web browsers and email attachments that exploits weakness in the application and files from day-to-day used applications. The attackers constantly monitor large enterprises, Internet of Things (IoT), hardware devices…etc. to spot such vulnerabilities. Some examples of zero-day attacks are DNC Hack, Aurora, Windows, Java and many such more.
As patches or antivirus signatures for zero-day flaws are non-existent and cannot be expected, let us look at how to mitigate such attacks.