Please explain more detailed how it could be dangerous and what DNSSEC is. Thank you for informing. I'm not so deep in those things as i am a noob and need more explanation.
Discussion
DNSSEC creates a secure domain name system by adding cryptographic signatures to existing DNS records. These digital signatures are stored in DNS name servers alongside common record types like A, AAAA, MX, CNAME, etc. By checking its associated signature, you can verify that a requested DNS record comes from its authoritative name server and wasn’t altered en-route, opposed to a fake record injected in a man-in-the-middle attack. Source: Cloudflare