9 hours ago
If there are no open ports and the NAS is not accessible from outside your home network, it should be safe to continue using it. Since you're mainly using it for local backups, as long as it's not exposed to the internet, the risk of exploitation should be minimal.
For extra safety, you can enable a firewall on your router to completely block internet access to the NAS. This would prevent any external connections to the device, even if there are unforeseen vulnerabilities.
For extra safety, you can enable a firewall on your router to completely block internet access to the NAS. This would prevent any external connections to the device, even if there are unforeseen vulnerabilities.