The Open Web Application Security Project (OWASP) is a global nonprofit organization dedicated to enhancing software security by making cyber security risks more transparent, allowing individuals and organizations to make informed decisions. It is known for the OWASP Top 10, a list highlighting the ten most prevalent security issues in software, focusing on general concepts rather than specific vulnerabilities. Experts like Johan Edholm from Detectify recommend developers familiarize themselves with this list to better understand potential weaknesses, such as those commonly found in login and authentication modules. Resources like the OWASP Top 10 project, Detectify's free trials, and their IT Sec FAQ series offer further exploration and guidance on addressing these security concerns.