General Hacking Forums:
0×00sec – [Login to see the link]: A forum focused on information security and hacking, with an emphasis on technical discussions and research.

Hack Forums – [Login to see the link]: One of the oldest and most well-known hacking forums, covering a wide range of topics from programming to penetration testing.

Greekhacking – [Login to see the link]: A Greek hacking forum, with various sections for discussions.

Happy Hack – [Login to see the link]: A forum with discussions about hacking and IT.
Hackonology – [Login to see the link]: A forum dedicated to hacking, information security, and related topics.

HacksTurkey – [Login to see the link]: A Turkish forum about hacking.
Underc0de – [Login to see the link]: A Spanish-language community focused on hacking and information security.

Go4Expert – [Login to see the link]: A forum for IT professionals and experts.

TrainingCircle – [Login to see the link]: A forum for learning in the IT field.

YouHack – [Login to see the link]: A large Russian-language forum about hacking and information security, also has an English version.

Nulled – [Login to see the link]: A forum for sharing and discussing various software, scripts, and materials related to hacking.

Nsane Forums – [Login to see the link]: A forum for discussing various software, cracks, and exploits

Memory Hackers – [Login to see the link]: A forum dedicated to cheats and hacks in games.

Ghostlyhaks – [Login to see the link] - A forum with discussions on various hacking topics.

CyberForum RU – [Login to see the link]: A Russian-language forum for discussing IT topics.
SzeneBox – [Login to see the link] - A German forum about cracking, software and everything related to it

Xaker.Name Team – [Login to see the link] - A Russian-speaking community on hacking.

Data Leak and Darknet Forums:
BreachForums – [Login to see the link]: A forum for publishing and discussing data leaks, one of the most well-known in this niche.

Leak Forum – [Login to see the link]: A forum for publishing and discussing data leaks.

Leak Zone – [Login to see the link]: A forum for publishing and discussing data leaks.

DirectLeaks – [Login to see the link]: A forum for publishing and discussing data leaks.

Cyber Leaks – [Login to see the link]: A forum for publishing and discussing data leaks.

Cyber Nulled – [Login to see the link]: A forum for sharing and discussing software, scripts, and leaks.

Darkweb Mafias – [Login to see the link]: A darknet forum focused on cybercrime.

DarkStash – [Login to see the link]: A darknet forum focused on cybercrime.
Dark-Time – [Login to see the link]: A darknet forum focused on cybercrime.

Cyberarsenal – [Login to see the link] : A forum on the darknet, cybersecurity and leaks.

DrDark – [Login to see the link]: A Russian-language forum about the darknet and carding.

Eternia – [Login to see the link]: A darknet forum focused on data leaks.
DarkPro – [Login to see the link] : A forum with discussions on the topic of the darknet.

Sinisterly – [Login to see the link]: A forum for sharing and discussing software, scripts, and leaks.
Leaked BB – [Login to see the link]: A forum for sharing and discussing leaks.
UnderWorldMafias – [Login to see the link]: A darknet forum focused on cybercrime.

VLMI – [Login to see the link]: A darknet forum focused on various criminal topics.

[Login to see the link] - Article about data leaks in the Darknet

Reverse Engineering Forums:
Exetools – [Login to see the link]: A forum dedicated to reverse engineering and software analysis.

Memory Hackers – [Login to see the link]: A forum with discussions on reverse engineering and cheats.
Reteam – [Login to see the link]: A forum on reverse engineering.

ROM Hacking – [Login to see the link]: A forum for hacking and modifying ROMs.

Carding Forums:
Alligator – [Login to see the link]: A forum specializing in carding.

ASCarding – [Login to see the link]: A forum dedicated to carding.

Carder Forum Online – [Login to see the link] : A forum about carding.

Carding Forum – [Login to see the link]: A forum about carding.

Carding Leaks – [Login to see the link] : A forum about carding.

CardVilla – [Login to see the link] : A forum about carding.
CWEB Carding Forum – [Login to see the link]: A forum for discussing carding-related issues.

EzCarder – [Login to see the link]: A forum dedicated to carding.
Legit Carder – [Login to see the link]: A Russian-language forum about carding.

LegitCarders – [Login to see the link]: A forum about carding.

Russian Carder – [Login to see the link]: A Russian-language forum about carding.

Verified Carder – [Login to see the link]: A forum about carding.

Crimenetwork – [Login to see the link] : A forum for discussing carding and other types of cybercrime.
CrdCrew – [Login to see the link]: A forum for discussing carding.

CrdPro – [Login to see the link]: A forum for discussing carding.

Valid Market – [Login to see the link] : A forum specializing in the sale and purchase of valid cards.

Other Specialized Forums:
Altenen Forums – [Login to see the link]: A diverse forum where various IT topics, as well as hacking and vulnerabilities, are discussed.

Antichat – [Login to see the link]: A forum dedicated to anonymity and security on the Internet.

Demon Forums – [Login to see the link]: A forum on various topics.
Shield Forum – [Login to see the link]: A forum dedicated to cybersecurity.

Exploit.in – [Login to see the link]: A forum for discussing vulnerabilities and exploits.

ForumTeamSite – [Login to see the link]: A forum with various topics, including hacking.
FSSquad – [Login to see the link]: A forum dedicated to various IT topics

High-Minded – [Login to see the link]: A forum dedicated to various IT topics.

Hide01 Forums – [Login to see the link]: An Iranian forum dedicated to various IT topics.
Iran-Cyber – [Login to see the link]: An Iranian forum on cybersecurity.

Kuketz Forum – [Login to see the link]: A German forum dedicated to security and privacy.

Leech – [Login to see the link]: A forum dedicated to file sharing.

MaulTalk – [Login to see the link]: A forum dedicated to various IT topics.

Niflheim – [Login to see the link]: A forum dedicated to various IT topics.

Noirth – [Login to see the link]: A forum on cybersecurity.
Nulled.Id – [Login to see the link]: A forum for sharing and discussing various software, scripts, and materials.

Openssource – [Login to see the link] : A forum dedicated to various IT topics.

Pegasus Hack Team – [Login to see the link] : A forum dedicated to hacking.

P0wersurge – [Login to see the link]: A forum with various IT topics.

ProLogic – [Login to see the link]: A Russian-language forum for IT specialists.

R10 – [Login to see the link] : A forum for discussing various topics.

RST Forums – [Login to see the link]: A forum dedicated to various IT topics.

Seopirat – [Login to see the link]: A forum dedicated to various IT topics.

Sinful Site – [Login to see the link]: A forum dedicated to various IT topics.

SoldierX – [Login to see the link] : A forum for discussing various IT topics.

Trusted Sellers – [Login to see the link] : A forum for finding trusted sellers in different niches.

TurkHacks – [Login to see the link]: A Turkish forum about hacking.

Webmasters – [Login to see the link]: A Russian-language forum for webmasters and IT specialists.
Wilders Security – [Login to see the link]: A forum dedicated to information security.

XSS.is – [Login to see the link]: A forum dedicated to XSS vulnerabilities and other web security issues.
Combolist – [Login to see the link]: A forum where you can find combo lists.

Black Hat Pro Tools – [Login to see the link]: A forum with various hacking tools.

Crackia – [Login to see the link]: A forum about cracking.
Cracking – [Login to see the link]: A forum about cracking.

Crackingall – [Login to see the link]: A forum about cracking.

Cracking Hits – [Login to see the link] : A forum about cracking.

Cracking Italy – [Login to see the link]: An Italian forum about cracking.

Cracking X – [Login to see the link]: A forum about cracking.

Crackingshare – [Login to see the link]: A forum about cracking.

Crackx – [Login to see the link]: A forum about cracking.

Hacking Father – [Login to see the link]: A forum on the topic of hacking
Hack Seller – [Login to see the link]: A forum where you can sell various hacking tools.

Psylab – [Login to see the link]: A forum dedicated to various IT topics.

Sinful Site – [Login to see the link]: A forum dedicated to various IT topics.

SoldierX – [Login to see the link]: A forum for discussing various IT topics.

Nulled.Id – [Login to see the link]: A forum for sharing and discussing various software, scripts, and materials.

Null Cracker – [Login to see the link] A forum where you can find cracked software.

RST Forums – [Login to see the link]: A forum dedicated to various IT topics.

Seopirat – [Login to see the link]: A forum dedicated to various IT topics.

Chitachok – [Login to see the link]: A forum dedicated to various IT topics.
Indetectables – [Login to see the link]: A forum about cheats and hacks in games

ForumTeamSite – [Login to see the link]: A forum with various topics, including hacking.

P0wersurge – [Login to see the link]: A forum with various IT topics.

FSSquad – [Login to see the link]: A forum with various IT topics

Hackseller – [Login to see the link]: A forum with various IT topics

High-Minded – [Login to see the link]: A forum dedicated to various IT topics.
Hide01 Forums – [Login to see the link]: An Iranian forum dedicated to various IT topics.

Niflheim – [Login to see the link]: A forum with various IT topics.