When developing a market-making bot, two security best practices are to use strong, unique passwords and to enable two-factor authentication. Using private, secure networks, encrypting private information, putting in place a rate limiter and monitoring for anomalous activity, updating software often to fix vulnerabilities, and maintaining a thorough audit trail are further recommended precautions. Additionally, do regular security audits and inspections, limit access to only what is necessary, and ensure that API keys are kept securely.