What is Cryptographic Hash Function?
A cryptographic hash function is an algorithm that can be run on a piece of data, like an individual file or a password, to produce a value called a checksum.
Unlike secret key and public key algorithms, hash functions, also called message digests, have no key. Instead, a fixed-length hash value is computed, based on the plaintext that makes it impossible for either the contents or length of the plaintext to be recovered.
Correlation is a relationship between two things (variables) that tend to vary or move together. There is usually some logical connection between the two things/variables.
How much the two variables are connected can be determined by calculating the correlation coefficient, which is denoted as ‘r’.
Every year in November ACFE celebrates International Fraud Awareness Week, to promote anti-fraud awareness and education. This year November 12-18 is being celebrated as International Fraud Awareness Week.
Whenever we speak of frauds, the first question which comes to our mind is, why do people commit frauds?
Extracting multiple zip files at a time can be a time consuming process. To save time, you can automate the process by creating a simple batch script to unzip multiple files in one go. I have compiled (I’m not the author) a script to automate the task of extracting multiple zip files using WinRAR.
I love sci-fi and action movies. One of my favourite Sci-fi movie is the ‘Back to the Future’ trilogy. The best part of sci-fi movies is that what is a fiction today, can become a reality tomorrow. I still wish to own the DeLorean from Back to the Futures, but I don’t think that will become a reality during my lifetime, but who knows.
The ﬁrst analysis of any data set need not use sophisticated mathematics or statistics. The goal of these test is to ﬁnd subsets that are highly inflated due to the error or fraud.
Largest Subset Test
The largest subsets test uses two ﬁelds, one with transaction or balance numbers (such as amount, inventory counts, vote counts, population counts) and another ﬁeld to indicate the subset (e.g., vendor number, credit card number, or branch number). Subset is a group of records that have something in common.
The data can often be divided into several subset groupings. For example, accounts payable data could be grouped by vendor or by the type of purchase (purchase order, no. purchase order) or by time. There are often a few different ways that data can be divided into subsets. For inventory data the grouping could be by location. For airline ticket refunds or retail customer refunds the groupings could be the credit card that received the refund.
Recently an old friend tried to sell me a unique business opportunity, like once in a lifetime opportunity by making me a member of Amway. For those of who don’t know Amway, it’s a multilevel marketing (MLM) company, dealing in dietary supplements.
What is Multilevel Marketing?
Multi-level marketing is a strategy that some direct sales companies use to encourage their existing distributors to recruit new distributors by paying the existing distributors a percentage of their recruits’ sales; the recruits are known as a distributor’s “downline.” All distributors also make money through direct sales of products to customers. (Investopedia)