What Is a Black Hat Hacker?
A black hat hacker is a cybercriminal who accesses your computer systems and network without your knowledge to steal data, disrupt systems and extort money. Black hat hackers try to take advantage of an organization’s security vulnerabilities to gain unauthorized access to software, systems and networks. Once they gain access to an organization’s data, black hat hackers may hold the data for ransom or sell it to other businesses or cybercriminals.