Cortex Library

The publications that carried the craft — linked to their official homes, described in Cortex's own words.

• Phrack

  Era: 1985–present

  One of the longest-running underground technical magazines, founded in November 1985 by the editors known as Taran King and Knight Lightning. Its name fuses 'phreak' and 'hack'; issues collect deep technical philes on systems, networks and exploitation theory, and it is the journal in which The Hacker Manifesto first appeared.

  Official source ↗ External · © owner

• 2600: The Hacker Quarterly

  Era: 1984–present

  A quarterly print magazine first published in 1984 by Eric Corley, who writes under the pen name Emmanuel Goldstein. Named after the 2600 Hz tone that once unlocked long-distance phone trunks, it documents telephony, security and the civil-liberties side of the hacker world, and organises the HOPE conference.

  Official source ↗ External · © owner

• Chaos Computer Club (media.ccc.de)

  Era: 1981–present

  The Chaos Computer Club, founded in 1981 in Berlin, is Europe's largest association of hackers and a long-standing voice for technology, privacy and freedom of information. Its official media archive publishes recordings of the Chaos Communication Congress and related events; the club's home is ccc.de.

  Official source ↗ External · © owner

• LOD/H Technical Journal

  Era: late 1980s

  A free electronic newsletter from the Legion of Doom/Hackers group in the late 1980s, known for very large, densely technical issues on telecommunications and computer security. Only a few issues appeared before Secret Service raids halted the group; the surviving files are preserved in the textfiles.com archive.

  Official source ↗ External · © owner

• 40Hex

  Era: 1991–1995

  The best-known early-1990s virus-writing zine, produced by the group Phalcon/Skism and running from 1991. Studied today as a historical primary source on the mindset and techniques of that era's virus scene; archived within the textfiles.com collection.

  Official source ↗ External · © owner

Figures who shaped security history — mostly historical hackers, with a few founders. Original bios from public facts.

• Kevin Mitnick

  Blackhat Handle: Condor Era: 1979–1995 · consultant 2000–2023

  The era's most famous intruder, Mitnick relied as much on social engineering as on technical skill to reach the systems of major technology and telecom firms. After years as a fugitive he was arrested in February 1995 and served about five years. He rebuilt his life as a security consultant and author until his death in 2023.

  Notable for: Social-engineering-driven intrusions and a landmark 1990s manhunt.

  Legacy: Turned notoriety into a career teaching organisations how human trust is exploited.

  Official source ↗ External · © owner

• Gary McKinnon

  Blackhat Handle: Solo Era: 2001–2002

  A British systems administrator who, in 2001–2002, accessed dozens of US military and NASA computers while, he said, searching for suppressed information. The United States sought his extradition for what prosecutors called the biggest military-computer intrusion of its kind. After a decade-long legal battle, the UK blocked his extradition in 2012 on human-rights grounds.

  Notable for: Large-scale intrusion into US military and NASA systems.

  Legacy: His case reshaped debate on extradition, disclosure, and neurodiversity in the justice system.

  Official source ↗ External · © owner

• John Draper

  Phreaker Handle: Captain Crunch Era: early 1970s

  A founding figure of phone phreaking, Draper took his handle from a toy whistle packaged with Cap'n Crunch cereal that happened to produce a 2600 Hz tone, the exact frequency that could seize a long-distance phone trunk. His blue-box experiments and the culture around them helped inspire a young generation of tinkerers, including the future founders of Apple.

  Notable for: The 2600 Hz whistle and blue-box phone phreaking.

  Legacy: Turned a quirk of the phone network into the origin story of a whole subculture.

  Official source ↗ External · © owner

• Gordon Lyon

  Whitehat Handle: Fyodor Era: 1997–present

  Under the handle Fyodor, Gordon Lyon released Nmap in 1997 and has maintained it ever since as the definitive open-source network-scanning tool. His work gave defenders and researchers a common, scriptable way to map hosts and services, and he remains an advocate for open security tooling.

  Notable for: Author and maintainer of the Nmap network scanner.

  Legacy: Built a tool so foundational that 'scanning a network' and 'running Nmap' are nearly synonymous.

  Official source ↗ External · © owner

• Kevin Poulsen

  Blackhat Handle: Dark Dante Era: 1980s–1991 · journalism 2000s

  Poulsen famously rigged a Los Angeles radio-station phone contest in 1990 to guarantee himself the winning call and a Porsche, among other intrusions. He served prison time, then reinvented himself as a respected investigative journalist covering security for outlets including Wired.

  Notable for: Seizing phone lines to win a radio contest; later security journalism.

  Legacy: A textbook arc from wanted hacker to credible chronicler of the field.

  Official source ↗ External · © owner

• Robert Tappan Morris

  Blackhat Handle: rtm Era: 1988 · academia since

  As a graduate student in November 1988, Morris released a self-replicating program that spread across the early internet far faster than intended, crippling thousands of machines. He became the first person convicted under the US Computer Fraud and Abuse Act, and later became a respected MIT professor and startup co-founder.

  Notable for: The 1988 Morris Worm — the internet's first large-scale worm.

  Legacy: His worm led directly to the creation of the first coordinated incident-response centre.

  Official source ↗ External · © owner

• Tsutomu Shimomura

  Whitehat Era: 1994–1995

  A computational physicist and security researcher whose own systems were targeted, Shimomura played a central role in the technical hunt that located Kevin Mitnick in early 1995. His pursuit, later recounted in a book, became one of the defining stories of 1990s computer security.

  Notable for: Helping track and locate Kevin Mitnick.

  Legacy: Showed the public a defender's side of the era's most famous chase.

  Official source ↗ External · © owner

• Peiter Zatko

  Whitehat Handle: Mudge Era: 1990s–present

  A leading member of the Boston hacker collective L0pht, Mudge co-authored the password auditor L0phtCrack and, in 1998, told a US Senate committee the group could disrupt the internet in half an hour. He went on to senior roles at DARPA and major technology companies, bridging the hacker underground and government.

  Notable for: L0pht, L0phtCrack, and the 1998 Senate testimony.

  Legacy: Helped make full disclosure and vulnerability research part of mainstream policy.

  Official source ↗ External · © owner

• Alexander Peslyak

  Whitehat Handle: Solar Designer Era: 1990s–present

  Known as Solar Designer, Peslyak created John the Ripper, the classic password-cracking tool used defensively to find weak credentials, and founded the Openwall project. He also runs long-standing security mailing lists that have coordinated responsible disclosure for decades.

  Notable for: John the Ripper and the Openwall security project.

  Legacy: Built enduring, freely available tools and forums for the defensive community.

  Official source ↗ External · © owner

• Jon Lech Johansen

  Blackhat Handle: DVD Jon Era: 1999–2000s

  As a teenager in Norway in 1999, Johansen helped write DeCSS, software that removed the copy protection on DVDs and let them play on unsupported systems. His subsequent trials, in which he was ultimately acquitted, became a defining test of the line between reverse engineering and piracy.

  Notable for: Co-writing DeCSS and defeating DVD copy protection.

  Legacy: A landmark figure in the legal fight over reverse engineering and fair use.

  Official source ↗ External · © owner

• Adrian Lamo

  Blackhat Handle: the Homeless Hacker Era: 2001–2003 · 2010

  Dubbed the 'homeless hacker' for working from libraries and cafes, Lamo broke into the networks of major companies and often told them afterward. He became a deeply controversial figure in 2010 when he reported the soldier later known as Chelsea Manning to US authorities. He died in 2018.

  Notable for: Intrusions into major corporate networks and the 2010 Manning disclosure.

  Legacy: A polarising case study in hacker ethics, disclosure and loyalty.

  Official source ↗ External · © owner

• Barnaby Jack

  Whitehat Era: 2010–2013

  A researcher famous for vivid live demonstrations, Jack made an ATM spit out cash on stage in 2010 in a stunt he called 'jackpotting'. He later turned to the security of medical devices such as pacemakers and insulin pumps, dramatising real risks to patient safety before his death in 2013.

  Notable for: ATM 'jackpotting' and medical-device security research.

  Legacy: Pushed vendors to take the safety of embedded and medical devices seriously.

  Official source ↗ External · © owner

• Loyd Blankenship

  Blackhat Handle: The Mentor Era: 1970s–1980s

  Writing as The Mentor, Blankenship was a member of several early hacking groups and, in 1986, penned the short essay that became known as The Hacker Manifesto. He later worked in the tabletop game industry, authoring a cyberpunk role-playing supplement that was itself caught up in a famous 1990 Secret Service raid.

  Notable for: Author of The Hacker Manifesto (1986).

  Legacy: Gave the subculture its most quoted statement of curiosity and belonging.

  Official source ↗ External · © owner

• Dark Avenger

  Virus writer Handle: Dark Avenger Era: late 1980s–early 1990s

  An anonymous Bulgarian virus writer active around 1989–1991 whose real identity was never confirmed. He is remembered for early self-modifying malware and, especially, for releasing a 'mutation engine' that made viruses polymorphic — much harder for signature-based scanners to detect — and which pushed the antivirus industry to evolve.

  Notable for: Early polymorphic malware and the Mutation Engine.

  Legacy: Forced antivirus detection to move beyond simple static signatures.

  Official source ↗ External · © owner

• Joybubbles

  Phreaker Handles: Joybubbles · Josef Engressia Era: 1960s–1970s

  Born Josef Engressia and blind from birth, Joybubbles had perfect pitch and discovered as a child that he could whistle the exact tones needed to control the telephone network. A gentle, near-legendary figure in the phreaking world, he showed that the phone system's secrets were open to anyone who listened closely.

  Notable for: Whistling the 2600 Hz control tone by ear.

  Legacy: An origin figure of phreaking who embodied curiosity over malice.

  Official source ↗ External · © owner

• Onel de Guzman

  Virus writer Era: 2000

  A student in the Philippines widely identified as the author of the ILOVEYOU email worm, which spread worldwide in May 2000 by tempting recipients to open a 'love letter' attachment. It caused enormous disruption, yet he was never prosecuted because the country then had no law covering such acts.

  Notable for: The ILOVEYOU worm of 2000.

  Legacy: Demonstrated the power of social engineering and spurred new cybercrime laws worldwide.

  Official source ↗ External · © owner

• Steve Wozniak

  Founder / guru Handle: Berkeley Blue Era: phreaking 1971 · Apple 1976

  Before co-founding Apple and designing its first computers, Wozniak built and sold blue boxes with Steve Jobs, delighting in the elegance of outsmarting the phone network. That playful, curiosity-driven hacking spirit carried directly into the machines that helped launch the personal-computer era.

  Notable for: Blue-box phreaking, then designing the Apple I and II.

  Legacy: A living link between the phreaking underground and the personal-computer revolution.

  Official source ↗ External · © owner

• Linus Torvalds

  Founder / guru Era: 1991–present

  Torvalds released the first version of the Linux kernel in 1991 as a student project, then shepherded it into the operating system that runs much of the internet, from servers to phones. He later created Git, the version-control system now central to how software is built collaboratively.

  Notable for: Creating the Linux kernel and, later, Git.

  Legacy: Two projects that underpin an enormous share of modern computing.

  Official source ↗ External · © owner

• Dennis Ritchie

  Founder / guru Handle: dmr Era: 1969–1980s

  At Bell Labs, Ritchie created the C programming language and co-created the Unix operating system, the technical foundations on which decades of software — and much of security itself — were built. His work earned a Turing Award and shaped how virtually every modern system is written. He died in 2011.

  Notable for: Creating C and co-creating Unix.

  Legacy: The languages and systems he built still underlie almost everything hackers study.

  Official source ↗ External · © owner

Attribution and context only — the text is not reproduced; read it at the official source.

In the spirit of The Mentor's 1986 essay — an original Cortex creed, written for the love of learning. Hover or scroll onto the terminal to boot it; read the source that lit the spark below.

There were nights the only warmth in the room came off the back of the monitor,
and I sat close to it like a stray sits close to a fire it didn't build.
I took a name that wasn't the one on my birth certificate,
because under that name, for the first time, I was heard for what I knew and not judged for who I was born as.
The teachers marked me absent-minded. The neighbours marked me strange.
Only the glow past midnight ever marked me present.
So the porch light went off and the machine stayed lit,
long after the people who loved me had given up waiting for the door to open.
I learned to love strangers I never met by the shape of the words they typed,
because a signal at 4 a.m. never once lied to me the way daylight did.
They came looking for the ones like us before they ever asked why we were looking —
kicked in doors for the crime of wanting to understand the thing more than we wanted to be liked.
So we went quieter. We went further underground. We kept no last names, only handles,
and inside that anonymity there was something close to freedom, and something close to grief.
There is a lonesome kind of romance in it — building a whole private universe alone in the dark,
for an audience of no one, out of nothing but stubbornness and a screen.
If you are reading this by the same blue light, half-ashamed, wide awake, certain you're the only one —
you are not. You never were. This was always a room full of us, just with the lights off.
— Overdrive

Milestones from the word's origin to the modern era, each in one or two original lines.

1. 1961Origins of the word 'hacker'

   At MIT in the late 1950s and early 1960s, students in the Tech Model Railroad Club and early computing labs used 'hack' for an ingenious, playful technical feat — the root of the word's computing sense.

2. 1971Phone phreaking reaches the public

   A 1971 magazine feature introduced a wide audience to blue boxes and the 2600 Hz tone, turning a niche telephone hobby into a recognisable subculture.

3. 1972Unix and C at Bell Labs

   The creation of the Unix operating system and the C language gave the coming decades their shared technical foundation — the systems and tools on which hacker and security culture would grow.

4. 1981The Chaos Computer Club is founded

   Founded in Berlin in 1981, the CCC grew into Europe's largest hacker association and a durable voice for privacy, transparency and the ethical dimension of technology.

5. 1983The 414s and the public alarm

   A group of Milwaukee teenagers broke into dozens of institutional computers, and the film WarGames landed the same year, together pushing computer intrusion into headlines and onto the political agenda.

6. 19842600 magazine and the hacker ethic

   The launch of 2600: The Hacker Quarterly, alongside popular writing that codified the 'hacker ethic', gave the culture regular publications and a shared vocabulary.

7. 1985Phrack begins publishing

   Phrack launched in November 1985 as an electronic magazine by and for the underground, becoming a lasting record of the era's technical thinking.

8. 1986The Manifesto and the CFAA

   The same year The Hacker Manifesto appeared in Phrack, the United States enacted the Computer Fraud and Abuse Act — the culture's defining statement and its defining law arriving together.

9. 1988The Morris Worm

   In November 1988 a self-replicating program spread across the early internet and disabled thousands of machines, prompting the creation of the first coordinated incident-response centre.

10. 1990Crackdowns and the birth of the EFF

    A wave of US law-enforcement operations against hackers, including a controversial raid on a game publisher, helped prompt the founding of the Electronic Frontier Foundation to defend digital civil liberties.

11. 1995The Mitnick arrest

    The February 1995 capture of Kevin Mitnick, aided by researcher Tsutomu Shimomura, became the era's most publicised case and a lasting symbol of 1990s computer crime.

12. 1998L0pht testifies to the US Senate

    Members of the L0pht collective told a Senate committee they could take down the internet in half an hour, a moment that helped move vulnerability research into mainstream policy.

13. 2003Metasploit is released

    The Metasploit Framework gathered scattered exploit code into one extensible platform, standardising how defenders test whether known weaknesses are truly exploitable.

14. 2011The Anonymous and LulzSec era

    Loose online collectives brought politically motivated hacking to global attention in the early 2010s, reshaping public debate on hacktivism, disclosure and accountability. (Context only — Cortex studies the history, not the operations.)

Genuinely public-domain or openly-licensed references — free to read, and in some cases to redistribute. Licence verified per item.

• IETF RFC 793 — Transmission Control Protocol

  IETF Trust — full unmodified reproduction permitted

  The original specification of TCP, the protocol underpinning most of the reliable internet. RFCs may be reproduced in full and unmodified under IETF Trust terms, making the foundational networking documents genuinely free to read and redistribute.

  Official source ↗ Public domain / open licence · free to reuse

• IETF RFC 1087 — Ethics and the Internet

  IETF Trust — full unmodified reproduction permitted

  A short 1989 statement from the Internet Activities Board on what constitutes unethical and unacceptable use of the network — an early, freely reusable primary source on computer and network ethics.

  Official source ↗ Public domain / open licence · free to reuse

• NIST SP 800-53 — Security and Privacy Controls

  U.S. Government work — public domain (17 U.S.C. §105)

  The US federal catalogue of security and privacy controls, widely used far beyond government. As a work of the US government it is in the public domain and free to read, copy and redistribute (honouring any separately marked third-party material).

  Official source ↗ Public domain / open licence · free to reuse

• NIST SP 800-115 — Information Security Testing

  U.S. Government work — public domain (17 U.S.C. §105)

  A technical guide to planning and conducting information-security testing and assessment. Being a US government publication, it is public domain — a solid, freely reusable reference for methodical, authorised security testing.

  Official source ↗ Public domain / open licence · free to reuse