Like the HINFO and MINFO RR's, TXT is vulnerable to RCE attacks and has no purpose at the moment. TXT may be needed in the future (e.g. data exfiltration) which is why it has been removed separately.
Like the HINFO and MINFO RR's, TXT is vulnerable to RCE attacks and has no purpose at the moment. TXT may be needed in the future (e.g. data exfiltration) which is why it has been removed separately.