Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The History of Digital Spam   Spam!: that's what Lorrie Faith Cranor and Brian LaMacchia exclaimed in the
title of a popular call-to-action article that appeared twenty years ago on
Communications of the ACM. And yet, despite the tremendous efforts of the
research community over the last two decades to mitigate this problem, the
sense of urgency remains unchanged, as emerging technologies have brought new
dangerous forms of digital spam under the spotlight. Furthermore, when spam is
carried out with the intent to deceive or influence at scale, it can alter the
very fabric of society and our behavior. In this article, I will briefly review
the history of digital spam: starting from its quintessential incarnation, spam
emails, to modern-days forms of spam affecting the Web and social media, the
survey will close by depicting future risks associated with spam and abuse of
new technologies, including Artificial Intelligence (e.g., Digital Humans).
After providing a taxonomy of spam, and its most popular applications emerged
throughout the last two decades, I will review technological and regulatory
approaches proposed in the literature, and suggest some possible solutions to
tackle this ubiquitous digital epidemic moving forward.

22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ