Answer: A- Public Key Encryption
Explanation: The Public key Encryption is used prevalently on the web, it allows for secure messages to be sent between parties without having to agree on, or share, a secret key. It uses an asymmetric encryption scheme in which the encryption key is made public, but the decryption key is kept private.
Answer:
A downloaded executable file may contain harmful software know as malware.
Further details:
Malwares:
Malware (a portmanteau for pernicious programming) is any product purposefully intended to make harm a PC, server, customer, or PC network. Malware does the harm after it is embedded or brought somehow or another into an objective's PC and can appear as legitimately executable code, contents, supposed "dynamic substance" (Microsoft Windows), and different types of data. Some sorts of malware are to a great extent alluded to in the media as PC infections, worms, Trojan steeds, ransomware, spyware, adware, and scareware, among different terms. Malware has a malignant expectation, acting against the enthusiasm of the PC client—thus does exclude programming that causes accidental damage because of some lack, which is regularly portrayed as a product bug.
Uses:
Malware is once in a while utilized comprehensively against government or corporate sites to assemble monitored information, or to upset their activity as a rule. However, malware can be utilized against people to pick up data, for example, individual recognizable proof numbers or subtleties, bank or charge card numbers, and passwords.
Answer details:
Subject: Computer and technology
Level: College
Keywords:
• Harmful software
• Malware
• Malware software
• Uses of malware
• Purpose of malware
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