It is a cyberattack that exploits a vulnerability in a system, software or application that has not yet been discovered.

This means that hackers can exploit this vulnerability to infect systems with malware and steal confidential data.

Since the developers are not aware of the vulnerability, there is no patch available to protect against such attacks. Therefore, it is difficult to detect and stop them.

Zero-day attacks can be triggered by various methods, such as email phishing, drive-by downloads, or even attaching a file to a website.

Once the hacker gains access to the system, he can remain undetected for weeks or even months without the owner ever knowing.

As a result, companies and individuals often have to pay a high price to recover their information and prevent further damage.

Therefore, it is important to keep systems and software up to date, practice good cyber hygiene and remain vigilant.

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