A thief walks up to an electronic lock with a 10-digit keypad and he notices that all but three of the keys are covered in dust while the 2, 4, 6, and 8 keys show considerable wear. He thus can safely assume that the 4-digit code that opens the door must be made up of these numbers in some order. What is the worst case number of combinations he must now test to try open this using a brute-force attack?

Yeah they want to steal your info and sell it on the dark web. they want your credit/debit card numbers, social security numbers, google passwords, and other stuff. some people install spyware onto your device, which, as the word suggests, is built to spy on your every move, such as what you type. they then sell this information to other people secretly or use it for evil purposes themselves. or both, idk. the reason why this info costs money to learn is because its valuable info. im not saying that i condone it though! hacking sucks, and whoever is involved in it is just a horrible person.

Apresentation program is a software package used to display information in the form of a slide show. it has three major functions: an editor that allows text to be inserted and formatted, a method for inserting and manipulating graphic images, and a slide-show system to display the content.