GlassHouse Cloud Services 
23 October 2025
What Is a Hacker? The Importance of Hackers in Corporate Data Security
The concept of a hacker is one of the most critical topics in digital security, encompassing not only malicious individuals but also ethical professionals who work to protect systems. Those identified as hackers can be involved not only in cyberattacks but also in processes such as testing and repairing system vulnerabilities. In this article, you’ll find answers to questions like what a hacker is, how they operate, and the different types (white-hat, black-hat, and gray-hat hackers). You’ll also learn about the threats hackers pose to corporate data security — from data theft to infrastructure sabotage — and the technical countermeasures organizations can take.
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