security.txt (RFC 9116) in Mass notification and critical events
It tells a researcher where to report a vulnerability instead of guessing.
0 of 12 vendors we measured here publish it, that is 0%. Last checked 2026-09-02.
0% here against 14% across every category we measure. Mass notification and critical events sits below the overall share for this criterion.
Back to security.txt (RFC 9116) across all categories, or to Mass notification and critical events.
Published
Served at /.well-known/security.txt.
None of the vendors we measured here published this.
No security.txt found.
We reached at least one address for each of these vendors and none of them carried it. That is what we found at the addresses we checked, on the date we checked them, and not a statement about what the vendor has.
| Vendor | What we found |
|---|---|
| Active911 | 1 address checked |
| AlertMedia | 1 address checked |
| Alertus | 1 address checked |
| ATI Systems | 1 address checked |
| Bryx | 1 address checked |
| CallingPost | 1 address checked |
| Connect Rocket | 1 address checked |
| F24 | 1 address checked |
| Mobile Text Alerts | 1 address checked |
| Singlewire | 1 address checked |
| Text-Em-All | 1 address checked |
| Titan HST | 1 address checked |
Not measured
We could not look at these, or their robots.txt asks us not to. That says something about our measurement, not about them, and they are left out of the percentage above.
None. Every vendor here was measured for this criterion.
Found something we missed? Tell us and the next run picks it up.