Across

3. a code that encodes text characters as standardized sequences of two different signal durations

8. relating to, being, or belonging to a system of numbers having 2 as its base

10. the practice and study of techniques for secure communication

12. software that aims to gather information about a person or organization, without their knowledge, and send such information to another entity without the consumer’s consent

18. to see, get knowledge of, learn of, find, or find out

19. a decentralized digital currency that can be sent from user to user on a peer-to-peer network without the need for intermediaries

20. a function that converts an input of letters and numbers into an encrypted output of a fixed length

23. software intentionally designed to cause damage to a computer, server, client, or computer network

24. a multilingual online encyclopedia created and maintained as an open collaboration project by a community of volunteer editors

26. a collection of computers, servers, mainframes, peripherals, or other devices connected to one another to allow the sharing of data

27. a positional system that represents numbers using a base of 16

29. a computer network for sharing corporate information, collaboration tools, operational systems, and other computing services only within an organization

30. to adjust precisely for a particular function

Down

1. freedom from, or resilience against, potential harm caused by others

2. decentralized international hacktivist group

4. a systematic arrangement of similar objects

5. a computer program that when run usually performs a malicious action

6. one that bears the blame for others

7. output of a blockchain transaction that has not been spent

9. the monitoring of behavior, activities, or information for the purpose of influencing, managing or directing

11. an exchange or transfer of goods, services, or funds

13. to mask or alter the dress or appearance of something so as to conceal the identity or true nature

14. a process that associates to each element of a set X a single element of a set Y

15. a radical change to a blockchain protocol

16. the quality or state of being apart from company or observation

17. a name that a person or group assumes for a particular purpose, which can differ from their true name

21. restricted to the individual or arising independently of others

22. a computer program that runs as a background process

25. a global system of interconnected computer networks that use a protocol suite to link devices worldwide

28. an operating system kernel first released on September 17, 1991