Security best practices, OWASP Top 10, secure coding practices, and security testing tools. OWASP Top 10 (2021) A01: Broken Access Control Vulnerability 1# ❌ Insecure Direct Object Reference (IDOR) 2@app.route('/api/users/<user_id>') 3def get_user(user_id): 4 user = db.query(f"SELECT * FROM users …