A vulnerability disclosure policy (VDP), also referred to as a responsible disclosure policy, describes how an origanisation will handle reports of vulnerabilities submitted by ethical hackers. A VDP must thus be easily identifable via a simple way, a security.txt notice.
# Include 'security' in the subject line to improve response time. Contact: firstname.lastname@example.org Contact: https://support.edmodo.com/hc/en-us/articles/360035475733
This policy crawled by Onyphe on the 2020-04-23 is sorted as securitytxt.