hack
verb [ I or T ]
uk/hæk/ us IT
to use a computer to access information stored on another computer system without permission, or to spread a computer virus:
hack into sth Two employees were charged with hacking into the company's computer system and changing data.
Studies have revealed that it's fairly easy to hack an electronic voting system.
Phrasal verb
hack away at sth
hack
noun [ C ]
uk/hæk/ us disapproving
a writer, especially a journalist, who produces articles, books, etc. that are of low quality:
a media/newspaper hack
disapproving
someone who works mainly for money without worrying about beliefs or the opinions of others:
a political/party hack
US informal
a person who drives a taxi
IT
an act of using a computer to access information stored on another computer system without permission, or to spread a computer virus :
A hack into an employee's email provided access to a number of confidential documents.