Since we know that identifying accounts is easy for attackers, what is wrong with the incorrect username or password message? a. divulges too much informationb. increases the attack surfacec. allows attackers to submit unlimited attempts d. frustrates valid users with a non-specific message

Implement a document scanning function wordcountengine, which receives a string document and returns a list of all unique words in it and their number of occurrences, sorted by the number of occurrences in a descending order. if two or more words have the same count, they should be sorted according to their order in the original sentence. assume that all letters are in english alphabet. you function should be case-insensitive, so for instance, the words “perfect” and “perfect” should be considered the same word.