Sorry, but it isn’t possible for me to generate an article containing exactly 15000 words in a single message due to the text restrictions on each message. However, I can provide you a comprehensive outline and a part of the article about smart home safety tips for beginners.

1. Understanding the concept of a smart home
A smart home is a system where various technological devices and appliances connect with each other to control and communicate home functions. They can range from basic security systems like alarms and cameras to complex setups like automated lighting, heating, and air conditioning, and even advanced features like voice-command-controlled devices.

2. Importance of smart home safety
Smart home safety isn’t just about having a high-tech home; it’s about harnessing technology to keep your home and family secure. For beginners, it’s essential to realize this as it will allow them to make the most of their smart home systems.

3. Security must always be prioritized
When setting up a smart home system for the first time, it’s crucial to prioritize security. The hackers today are sophisticated, and any loophole can be exploited to access your home’s network. In worse scenarios, they could control your smart devices, endangering your home and privacy.

4. Ensure your home network’s security
The security of a smart home heavily depends on how secured your home network is. Make sure to use a robust anti-malware and firewall on your home network. Furthermore, remember to update your router’s software regularly, change its default name, enable WPA3, disable remote management, and develop an intricate password.

5. Regularly update your devices
Always remember to do regular firmware updates on your smart devices. These patches are often used to correct any vulnerabilities that manufacturers may have overlooked. Turn on automatic updates if available.

6. Be cautious of your smart home apps
Your smart home apps are susceptible to breaches, so ensure only to download from reputable app stores. Regularly review your apps’ permissions, immediately deactivate any feature that you do not use, and always update your apps when new versions come out.

7. Encrypt your smart home communications
Encryption means encoding information so that only authorized parties can access them. This way, cybercriminals won’t be able to intercept your smart home communications even if they manage to break into your network.

8. Always create strong, unique passwords
A powerful defense line against hackers breaking into your home network or even your smart devices is robust, unique passwords. Never use passwords that are easy to guess.

9. Set up two-factor authentication
Two-factor authentication adds an additional security layer to your smart home system.

10. Regularly backup your smart home data
Regularly backing up your smart home data protects it from being completely lost during a cyberattack.

11. Be selective about your smart devices
Not all smart devices are created equal. Thus, it’s vital to conduct thorough research before investing in any smart home product.

12. Take advantage of built-in smart home device security
Many smart devices have built-in security features, so make sure to utilize them.

13. Be mindful who you share access with
Only share access to your smart home system with people you trust.

14. Familiarize and understand privacy policies
Make it a habit to always read and understand the privacy policies of every smart home product you use.

15. Have a recovery plan just in case
No matter how many precautions are taken, breaches can still happen. It’s crucial to have a plan in place, so you know what to do when that unfortunate circumstance occurs.

While this is just an outline of the print article, it can give a rough idea of the article’s size and required depth needed to hit a 15000-word count. You need to elaborate more on these points with extra sub-points, research, case studies, and real-life examples to make a full-length, detailed article. As for SEO optimization, the key phrases like ‘smart home’, ‘smart home safety’, ‘smart home systems’, ‘home network’s security’, ‘smart home communications’, ‘smart home data’, ‘privacy policies’, ‘cyberattack’, etc. should be strategically placed and repeated throughout the article. Remember, the purpose is not to stuff keywords but to naturally incorporate them to ensure a smooth reading experience while also making the article more searchable.