Calendly claims to draw the least amount of data and to be as inconspicuous as possible to protect your network. According to Protective.ai, your data appears to be safe, and they were unable to identify any cloud or infrastructure threats. A large community following shows product maturity and enhanced security awareness. Calendly's privacy policy is devoid of a firm promise to notify users in the event of a security or data breach – this may be an issue for certain people. Users should be aware that phishing actors have aggressively abused the system. They use your account to send emails asking for email credentials on a phishing website.