It's no exaggeration to say that in most corporate environments, the people in the IT department are some of the most essential employees there. If the tech doesn't work, then the whole business is in trouble—plus, there's every chance they have access to everything you do on your computer at work.
In short, they aren't the coworkers that you want to get on the wrong side of. However, this can sometimes be a difficult task if they are the kind of personalities that don't play well with others.
This is what one British woman found out to her detriment. She recently shared the ordeal she had gone through for the past ten years after IT support in her company decided to make her working life one problem after the other. Claiming that this now ex-employee had decided on revenge after she had rejected his romantic advances, he began systematically and regularly adding errors to her work.
She explained how this had led to extensive damage in her professional life, and even required her to undergo neurological health assessments. Understandably, she wanted to take legal action. People on Twitter weren't so sure about her recourse, but they were united in their horror at what this dude had done. It's scary to think that one person could have that much power over your job.