Not all, some are good some are bad. White hat hackers are good, and black hat hackers are bad.
No. Hackers are generally regarded as external human threats. Internal human threats include disgruntled employees. They may also be hackers, but the fact they are employees makes them an internal threat, not the fact they are hackers.
hackers
No, Just a online threat.
Hackers
Black Hat: Criminal Hackers White Hat: Authorized Hackers Grey Hat: “Just for Fun” Hackers Script Kiddies: Ametuer Hackers Green Hat: Hackers-in-Training Blue Hat: Authorized Software Hackers Red Hat: Government-Hired Hackers State/Nation Sponsored Hackers: International Threat Prevention
Disgruntled employees.
Hackers with concent are called ethical hackers and they are encharged with keeping the virus threat up to a minimal level.
That would depend on the environment, but fire is the common environmental threat. Hackers also threaten the environment of computers. Spies also threaten business and government environments. Firewalls are not a threat of any kind.
The best OS for hackers is Backtrack Linux 5.
Oh, dude, we've got your script kiddies who just copy and paste code, your black hat hackers causing chaos, your white hat heroes fixing stuff, and your grey hats who are like the rebellious teens of the hacking world. It's like a high school cafeteria, but with more computer screens and less actual food.
It depends on... Usually after hacking the system, hackers escalate rights on the system, then open backdoors (by installing "illegal" software) to make possible to use the system again. And the last step hackers hide its presence by deleting or modifying log files.
internal threats are anything that harms the computer system within the organisation such as hardware failure, human error. External threats are anything that harms the system from outside the organisation, such as, viruses, hackers, spyware