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What is a “False Positive”?
A true positive is an outcome where the model correctly predicts the positive case. Ex: Downloaded file is malware, and the A.V. detected it as malware. A true negative is an outcome where the model correctly predicts the negative case. Ex: Downloaded file is NOT malware, and the A.V. did NOT detect it as malware. A false positive is an outcome where the model incorrectly predicts the positive case. Ex: Downloaded file is NOT malware, but the A.V. detected it as malware. A false negative is an outcome where the model incorrectly predicts the negative case. Ex: Downloaded file is a malware, AV did NOT detect it as malware. True…
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What is Attack Surface?
Attack surface. First thing I start thinking is the surface area, or the exposed area that is susceptible to a cyber onslaught by threat actors, or bad people with malicious intent. According to Wikipedia: “The attack surface of a software environment is the sum of the different points (for “attack vectors”) where an unauthorized user (the “attacker”) can try to enter data to or extract data from an environment. Keeping the attack surface as small as possible is a basic security measure.” via Wikipedia “KEEPING THE ATTACK SURFACE AS SMALL AS POSSIBLE IS A BASIC SECURITY MEASURE.” **clap, clap** Does that last line stick out to anyone else?? It should.…
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More Programming Notes…
Value–the representation of some entity that can be manipulated by a program. The members of a ‘type‘ are the values of that type. Data are characteristics, or information, usually numerical, that are collected through observation. In a more technical sense, data are a set of values of qualitative or quantitative variables about one or more persons or objects, while a datum (singular of data) is a single value of a single variable. In academic treatments, data are simply units of information. Data re employed in virtually every form of human organizational activity. Data are measured, collected & reported, and analyzed. Raw data (“unprocessed data” is a collection of numbers or…
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Computer Organization–Notes
Computer Organization Input Unit–the “receiving” section. It obtains info from input devices & places it at the disposal of the other units for processing. Output Unit–the “shipping” section takes information that the computer has processed & places it on various output devices to make it available for use outside the computer. (i.e.–displayed on screens, printed on paper, played on audio devices, or used to control other devices. Can also be output to networks, such as the Internet. Memory Unit–this rapid-access, relatively low-capacity “warehouse” section retains info that has been entered through the input unit, making it immediately available for processing when needed. Also retains processed info until it can be…
