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. https://antivirus.comodo.com/blog/comodo-news/zero-day-exploit/
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WHAT IS ZERO-DAY EXPLOIT
A zero-day exploit is a software flaw or a vulnerability. Hackers use this as an exploit to attack the user’s system even before the software vendor identifies it and a security patch fix is available. These zero-day exploits can go unnoticed for a long time and are commonly sold for large sum of money. Day zero is when the software vendor identifies the vulnerability and starts to work on how to fix the security issues. What is a software vulnerability? Vulnerabilities are flaws or bugs in a software code of any application, program or operating system. If the flaw is left unfixed, security gaps are formed, and they become vulnerable source of exploit to cyber thieves and hence the software flaws are called software vulnerability. READ MORE