A expressão all at once, na linha 25, quer dizer

As questões 21 a 32 referem-se ao texto abaixo.

What is Computer Crime Law?

1. Computer crime (or cybercrime) law deals with the
2. broad range of criminal offenses committed using a
3. computer or similar electronic device. Nearly all of
4. these crimes are perpetrated online. The internet
5. provides a degree of anonymity to offenders, as well
6. as potential access to personal, business, and
7. government data.
8. Many computer crimes are committed as a means
9. of stealing money or valuable information, although
10. financial gain is not always the objective. In fact,
11. some of the most notorious incidents of computer
12. crime involve hackers seeking to overcome
13. government or corporate cyber security measures.
14. Hacking is one of the most well-known types of
15. computer crime. In this context, the term refers to the
16. unauthorized access of another’s computer
17. system. These intrusions are often conducted in
18. order to launch malicious programs known as viruses,
19. worms, and Trojan Horses that can shut down or
20. destroy an entire computer network. Hacking is also
21. carried out as a way to take credit card numbers,
22. internet passwords, and other personal information.
23. By accessing commercial databases, hackers are able
24. to steal these types of items from millions of internet
25. users all at once.
26. Internet piracy is another common offense. Piracy
27. involves the dissemination of copyrighted material
28. without permission of the owner. Beginning in the
29. early 1990s, music sharing websites became
30. extremely popular, many of them operating in
31. violation of the law. Movies, video games, e-books,
32. and software are now pirated over the internet as
33. well. Estimates by the entertainment industry
34. put the annual cost of internet piracy in the
35. billions of dollars, although there is evidence
36. the scope of the economic impact has been
37. overstated by the industry in an effort to
38. persuade the Government to pass further
39. regulations.

Texto extraído e adaptado do sítio: www.hg.org/computer-crime.