Zero-day
A zero-day attack is an exploit that is unknown to the world, including the vendor, which means it is unpatched by the vendor. These attacks are commonly used in nation-state attacks, as well as by large criminal organizations. The discovery of a zero-day exploit can be very valuable for ethical hackers and can earn them a bug bounty. These bounties are fees paid by vendors to security researchers that discover previously unknown vulnerabilities in their applications.
Today, many organizations have established a bug bounty program, which allows interested persons who discover a vulnerability within a system of a vendor to report it. The person who reports the vulnerability, usually a zero-day flaw, is given a reward. However, there ...
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