AI-Augmented Cyber Operations
Enhance security workflows by integrating validated AI agents.
Validate Operational Readiness
Assess and verify that cyber teams can withstand real-world threats.
Cyber Workforce Development
Build and elevate cyber talent through structured plans.
Strategic Cyber Resilience
Strengthen the ability to prevent and recover from incidents.
For Teams
Enterprise Platform
Our cyber workforce development platform
Capture The Flag
Assess cyber readiness with team exercises
Threat Range
Team exercises for measurable readiness
Crisis Control
Test your response in real-world incidents
Talent Search
Source and hire validated security talent
For Individuals
Academy
Courses and learning paths for all levels
Labs
1,500+ hands-on cybersecurity labs
Capture The Flag
Compete in gamified security competitions
Job Board
Discover cybersecurity jobs worldwide
HTB AI Range
Test capabilities, evaluate AI resilience, and deploy safer assistants & agents within the reinforcement learning platform.
For Your Teams
Red Teams Blue Teams Purple Teams
For Your Industry
Public Sector Finance Consulting Education
Plans
Resource Hub
Educational resources for hackers, schools and teams.
Explore all resources
Live Sessions
Tune in on Twitch for live walkthroughs.
Join Us Now
Community
The HTB Community Meetups Affiliate Program SME Program Ambassador Program Parrot OS
Get Help
Help Center Contact Support Trust Center
September 3, 2026
Pricing changes on HTB Academy: moving to tier-based access and updating subscription rates
Read article
What's new
Pressure Zone Podcast
The ultimate stress test for cybersecurity leaders. Tune in as we put top security decision-makers in the hot seat, challenging them to navigate chaotic, simulated cyber incidents in real time.
Listen now
About HTB
About us Newsroom Careers Social Impact Brand Guidelines Certificate Validation Legal
Contact Us
Partners Enterprise
Connect
LinkedIn X YouTube Facebook Discord Server
Why Hack the Box?
Join our mission to create a safer cyber world by making cybersecurity training fun and accessible to everyone.
View open jobs
What's New
Explore top cybersecurity updates, announcements, and news.
Read more
Store
HTB Swag Buy Gift Cards

Business Sign in Get Started

Why HTB

Platform

Resources

Company

Why HTB

AI-Augmented Cyber Operations

AI-Augmented Cyber Operations

Enhance security workflows by integrating validated AI agents.

Validate Operational Readiness

Validate Operational Readiness

Assess and verify that cyber teams can withstand real-world threats.

Cyber Workforce Development

Cyber Workforce Development

Build and elevate cyber talent through structured plans.

Strategic Cyber Resilience

Strategic Cyber Resilience

Strengthen the ability to prevent and recover from incidents.

Platform

For Teams

Enterprise Platform

Capture The Flag

For Individuals

Capture The Flag

For Your Teams

Red Teams Blue Teams Purple Teams

For Your Industry

Public Sector Finance Consulting Education

Resources

Community

The HTB Community Meetups Affiliate Program SME Program Ambassador Program Parrot OS

Get Help

Help Center Contact Support Trust Center

Resource Hub

Educational resources for hackers, schools and teams.

Explore all resources

Live Sessions

Tune in on Twitch for live walkthroughs.

September 3, 2026

Pricing changes on HTB Academy: moving to tier-based access and updating subscription rates

What's new

Pressure Zone Podcast

The ultimate stress test for cybersecurity leaders. Tune in as we put top security decision-makers in the hot seat, challenging them to navigate chaotic, simulated cyber incidents in real time.

Company

About HTB

About us Newsroom Careers Social Impact Brand Guidelines Certificate Validation Legal

Contact Us

Partners Enterprise

Connect

LinkedIn X YouTube Facebook Discord Server

Store

HTB Swag Buy Gift Cards

Why Hack the Box?

Join our mission to create a safer cyber world by making cybersecurity training fun and accessible to everyone.

What's New

Explore top cybersecurity updates, announcements, and news.

HTB Blog

F

Author

FizzBuzz101

Browse all articles

UNI CTF 2021: Showcase of Modern Linux Kernel Exploitation Techniques

Write-Ups 19 min read

FizzBuzz101 Dec 14, 2021

Receive our weekly blog digest

The #1 platform to build attack-ready teams and organizations.

Products

Teams

Courses & Certifications
Cyber Ranges
Enterprise Attack Simulations
Cloud Infrastructure Simulations
Capture The Flag
Tabletop Exercises
Talent Sourcing

Individuals

Courses & Certifications
Hacking Labs
Defensive Labs
Red Team Labs
Capture The Flag
Job Board

Products

Teams

Courses & Certifications
Cyber Ranges
Enterprise Attack Simulations
Cloud Infrastructure Simulations
Capture The Flag
Tabletop Exercises
Talent Sourcing

Individuals

Courses & Certifications
Hacking Labs
Defensive Labs
Red Team Labs
Capture The Flag
Job Board

Solutions

Job Roles

Red Teams
Blue Teams
Purple Teams

Industries

Government
Education
Finance
MSSPs

Use Cases

Technical Onboarding
Team Benchmarking
Candidate Assessment
Threat Management
Code Vulnerability
Crisis Simulation
Governance & Compliance

Solutions

Job Roles

Red Teams
Blue Teams
Purple Teams

Industries

Government
Education
Finance
MSSPs

Use Cases

Technical Onboarding
Team Benchmarking
Candidate Assessment
Threat Management
Code Vulnerability
Crisis Simulation
Governance & Compliance

Resources

Community
Blog
Industry Reports
Webinars
AMAs
Learn with HTB
Customer Stories
Cheat Sheets
Compliance Sheets
Glossary
Guides & Templates
Parrot OS
Help Center

Programs

Channel & Resellers
Ambassador Program
Affiliate Program
SME Program

Resources

Community
Blog
Industry Reports
Webinars
AMAs
Learn with HTB
Customer Stories
Cheat Sheets
Compliance Sheets
Glossary
Guides & Templates
Parrot OS
Help Center

Programs

Channel & Resellers
Ambassador Program
Affiliate Program
SME Program

Company

About us
Newsroom
Careers
Brand Guidelines
Certificate Validation
Trust Center
Vulnerability Disclosure
Product Updates
Status

Contact Us

Support
Enterprise Sales

Partners

Become a Partner
Register a Deal

Store

HTB Swag
Buy Gift Cards

Company

About us
Newsroom
Careers
Brand Guidelines
Certificate Validation
Trust Center
Vulnerability Disclosure
Product Updates
Status

Contact Us

Support
Enterprise Sales

Partners

Become a Partner
Register a Deal

Store

HTB Swag
Buy Gift Cards

Cookie Settings Privacy Policy User Agreement© 2026 Hack The Box