The term "zero-day" applies to newly found security flaws that hackers can exploit to attack systems. The term "zero-day" refers to the fact that the vendor or developer only recently discovered the fault, or it has yet to be discovered altogether. In other words, it is so fresh that it has yet to be fixed. A zero-day attack occurs when hackers take advantage of a weakness (zero-day) before developers, programmers, and experts have a chance to fix it.
Regardless of the motive, all these forms and types of hackers can execute zero-day attacks and put a company at risk.
A zero-day attack can take advantage of flaws in a wide range of systems, including:
Zero-day attacks are difficult to identify since they can take many different forms, such as missing data encryption, missing authorizations, flawed algorithms, bugs, password security issues, and so on. Because of the nature of these vulnerabilities, full information regarding zero-day attacks is only available after the attack has been discovered, which is already too late.
Consider a zero-day vulnerability to be an unlocked car door that the owner believes is locked but that a robber discovers is still not. The thief can sneak in and steal items from the car owner's glove compartment or trunk, which may not be discovered for days after the damage has been done and the thief has escaped.
That being said, here are some tips to help protect yourself against zero-day attacks:
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