HackerOne is an offensive security platform that blends AI and expert security researchers for crowdsourced security, bug bounty, pentesting, and AI red teaming.

Kali.org is the best resource for Kali Linux, the leading platform for penetration testing and cybersecurity used by ethical hackers and security professionals.

Troy Hunt's blog covers cybersecurity, data breaches, security training, and the operation of the 'Have I Been Pwned' service.

EC-Council is the best online training platform for cybersecurity and is used by professionals seeking certification in ethical hacking and cloud security.

TryHackMe is a free online platform for learning cyber security using hands-on exercises and browser-based labs for aspiring security professionals.

Hack The Box is a cybersecurity training platform that specializes in penetration testing and ethical hacking.

Metasploit is the world's most used penetration testing framework and software for finding vulnerabilities and managing security assessments.

OffSec provides rigorous, hands-on cybersecurity training and certifications through its learning platform and extensive lab library.

Intigriti is a global bug bounty platform offering crowdsourced security, VDPs, and agile pentesting to enterprises.

YesWeHack is a bug bounty platform for securing applications using ethical hackers through private and public programs.

Cyber Security Intelligence is a news and directory platform providing the latest articles, sector-specific insights, and supplier listings for the global cybersecurity industry.

Omni Academy offers IT training, consulting, and certification prep (AI, Cyber Security, Oracle ERP) in Pakistan and internationally.

Information Security Newspaper delivers daily cyber security news, data breaches, malware analysis, and ethical hacking tutorials for security professionals.

Security Audit Systems is a leading provider of penetration testing, website security auditing, and managed security services for organizations globally.

Include Security is an application security consulting company based in New York City

FROMDEV is a technology blog offering programming books, tutorials, hacking guides, AI resources, and crypto information for developers and tech enthusiasts.

Chema Alonso's blog covering Ciberseguridad, IA, Hacking, Pentesting, Comics, and technology news, often featuring 0xWord publications.

Dark Hacker World is a blog about Ethical Hacking, money-making, and latest technology.

Black Hat Ethical Hacking is a cybersecurity service provider for penetration testing, vulnerability assessment, and digital forensics.

SkillFloor offers government-recognized training in high-demand tech fields like Data Science, AI, Digital Marketing, and Cloud Computing, including internships and job assistance.

Cybersecurity resource for penetration testing and Red Teaming

Codelivly is a cybersecurity learning platform for ethical hackers and developers.

AcisNI.com is a comprehensive guide to spy software, offering in-depth reviews of top apps like mSpy and FlexiSPY, alongside ethical hacking and online security tutorials.

DekiSoft posts about the latest Cyber Security, Ethical Hacking and Windows tutorials. Also download free software, games and Android Apk here.