All businesses require hardware and software protection, and for some sectors such as financial services, healthcare and government, protection needs can be vast and expensive.
Large companies will employ ethical hackers to find breaches in their systems and the demand for this type of work is growing and growing.
Techworld spoke to certified ethical hacker Matthias Maier from Splunk and CBT Nuggets trainer Keith Barker to find out how you can become one too.
As Keith Barker explained: "The issue with ethical hacking is, for example, if we put a hammer in someone's hand that hammer could be used to build something or it could be used to break a window.
"So the tools taught to ethical hackers are real and part of it is to create a shock effect so people realise, these attacks aren't just something we read about, it's something that's really happening," he added.