Yannis C Stamatiou

1. Introduction The term malware is used to characterize any type of malign or malicious software, regardless of how it works, its intent, or how it is distributed. There are several types of malware such as virus, worms, ransomware, scareware, adware, spyware, and fileless malware, each with its own characteristics, operation, and spread strategy.

1. Introduction In today’s fast-paced digital world, the explosion of data has completely reshaped the business and industrial landscapes. Organizations are now surrounded by data from numerous sources, including traditional systems, social media, and IoT devices. This influx of data offers a huge opportunity to gain valuable insights for strategic decisions and innovation, but it also brings the significant challenge of managing, processing, and analyzing vast and varied datasets effectively [1].

5.2. Online Electronic Lotteries Online eLotteries represent an application area where the unpredictability of the produced numbers of each draw is an essential requirement. Naturally, in this application field, where high financial stakes exist, more requirements are necessary to ensure the validity of each draw, such as the following: The produced numbers should obey the uniform distribution over the required number range.