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What is a Zero-Day Attack?

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A zero-day attack occurs when cyber-criminals manage to exploit a vulnerability before security personnel and software developers can find and fix it. In other situations, the software vendor might have information about the security flaw but does not have a patch to eliminate the bug. The incident takes any form, such as SQL injection, missing data encryption, buffer overflow, lack of authorisation, broken algorithm, software bugs, missing password security and improper URL redirects. Zero-day attacks are challenging to detect and mitigate.

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