There's no single "biggest" hacker, but Kevin Mitnick is widely considered the world's most famous hacker, known for breaching major corporations before becoming a leading security consultant, while groups like Anonymous represent large-scale, politically motivated hacktivism, and the title can also refer to individuals behind massive data breaches, though these are often attributed to shadowy groups rather than one person.
Computer Fraud and Abuse Act
If you are charged with federal hacking crimes under 18 U.S.C. § 1030, you could face up to a year in federal prison for lesser offenses, between 10-20 years for more serious offenses, and even life in prison if the hacking resulted in someone's death.
Kevin Mitnick is often referred to as the first cybercriminal. From 1970 until 1995, Mitnick managed to access some of the most guarded and secure networks in the world, including Motorola and Nokia.
The most notorious hackers of 2025 include: Lazarus Group (TraderTraitor), IntelBroker, Scattered Spider, Predatory Sparrow, Dark Storm Team, and Anonymous Sudan ,responsible for the most disruptive and financially devastating cyberattacks this year.
1. Yahoo – 3,000,000,000 records lost. In 2013, hackers breached Yahoo's system and leaked customer info from over 3 billion accounts. Fortunately, the stolen data didn't include crucial information such as payment data, unhashed passwords, or bank account numbers.
Why are grey hat hackers illegal? Any time you break into a network or computer system that you don't have permission to enter, you're not acting ethically or legally. Even with good intentions, you'll be at risk for legal action if you engage in grey hat hacking.
Kevin Mitnick holds the title as the world's most famous hacker ever, with this title dating back to 1995 by the US Department of Justice. Kevin Mitnick started hacking at an early age. He broke into the realm of public attention in the 1980s after he hacked into the North American Defense Command (NORAD).
According to surveys, ethical hackers receive the highest paycheck at companies in San Francisco (around $150,000) and the lowest pay by companies in Minneapolis (around $97,000). On the other hand, the average salary for a CEH (Certified Ethical Hacker) in the US is around $90,000 per annum.
Modern-day computer hackers have been compared to the privateers of by-gone days. These criminals hold computer systems hostage, demanding large payments from victims to restore access to their own computer systems and data.
In The Hacker's Handbook, Headley is referred to as "one of the earliest of the present generation of hackers" and described her as successfully hacking the US phone system as a 17-year-old in 1977.
The future is not AI replacing hackers but rather AI-augmented hacking and defense. AI as a co-pilot – Cyber professionals will use AI to handle repetitive tasks, while humans focus on strategy and decision-making.
A blue box is an electronic device that produces tones used to generate the in-band signaling tones formerly used within the North American long-distance telephone network to send line status and called number information over voice circuits.
Of course, the easiest way for a hacker to make money would be to become a penetration tester. Penetration testing is basically ethical, licensed hacking. You can earn good money and get great job satisfaction without the falling foul of the law.
Cyber. The FBI is the lead federal agency for investigating cyberattacks by criminals, overseas adversaries, and terrorists. The threat is incredibly serious—and growing.
5 Types of Cyber Crime
Yes, you absolutely can make $200,000 or more in cybersecurity, especially in senior, specialized, or high-demand roles like CISO, Senior Security Engineer, Cloud Security Engineer, or Security Consultant, with compensation increasing significantly with experience, certifications, and location (especially in tech hubs). While entry-level roles start lower, experienced professionals can reach $200k+ through strategic career growth and skill development in areas like cloud security, application security, and executive leadership.
Switzerland tops the list of countries with the highest monthly salaries in 2025, offering an impressive average of USD 8,247. Luxembourg follows in second place with USD 6,764, driven by its strong financial sector and high standard of living.
Undoubtedly, ethical hacking is one of the most promising and interesting professions for people who are interested in computer security and doing intricate puzzles.
Kevin Mitnick became “the world's most famous hacker” after stealing computer code from tech companies like Nokia and Motorola.
Shimomura monitored the intrusions and was able to trace Mitnick to a cellular telephone site near Raleigh, North Carolina, where the FBI captured him on February 15, 1995. In 1996, the US Justice Department indicted Mitnick on twenty-six counts of computer, telephone, and wire fraud.
Computer hackers in the USA go to jail for 10 years for a first offence, and a recidivist gets up to 20 years in prison. In addition, any attempt to cause damage to computers will result in serious problems.
Many exploits are scams to get you to download malware, such as a keylogger or other phishing program that can be used to steal personal information you have on your computer, including your Roblox password.
China, Russia, the United States, India, North Korea, and Iran are among the countries with the most hackers in the world.