Disabling Microsoft Defender increases your risk of malware, ransomware, data breaches, and cyber attacks on the system. Without a defender, your system lacks real-time protection, making sensitive data vulnerable. To mitigate risks, install alternative antivirus software, practice safe browsing, keep your system updated, and ensure a firewall is enabled. Only disable Defender temporarily and with precautions in place. Learn how to turn off Microsoft defender by reading the article.