reduce the risk of a security incident by working with the world’s largest community of trusted ethical hackers. hackerone offers bug bounty, vdp, security assessments, attack surface management, and pentest solutions.

bugcrowd teams with elite security researchers to reduce risk & improve security roi through our bug bounty, pen testing, & vulnerability disclosure programs.

report a vulnerability or start a free bug bounty program via open bug bounty vulnerability disclosure platform.

europe’s leading bug bounty platform and penetration testing services provider.

modernize traditional offensive security with global talent and a saas platform to deliver better security - from the team that innovated pentest via pentest as a service (ptaas).

a collection of write-ups from the best hackers in the world on topics ranging from bug bounties and ctfs to vulnhub machines, hardware challenges and real life encounters. subscribe to our weekly newsletter for the coolest infosec updates: https://weekly.infosecwriteups.com/.

we specialize in penetration testing, red teaming, and threat hunting. let us help you find the holes in your security.

spécialiste du pentest, vaadata propose des tests d’intrusion et des audits de sécurité, pour vous aider à évaluer et renforcer votre niveau de cybersécurité

portswigger offers tools for web application security, testing, & scanning. choose from a range of security tools, & identify the very latest vulnerabilities.