https://blog.twitter.com/en_us/a/2013/twitter-alerts-critical-information-when-you-need-it-most.html
https://blog.twitter.com/en_us/a/2013/twitter-alerts-new-countries-and-features.html
By enrolling in Twitter Alerts, an organization can push an Alert to users’ phones during an emergency, natural disaster or whenever other communication services aren’t accessible. Twitter Alerts now have participating organizations in the U.S., Japan, Korea, UK, Ireland, Australia and Brazil.
More than 50 U.S. organizations — state, regional, federal — have Twitter Alerts enabled. Participants include the Federal Emergency Management Agency (FEMA), Department of State, Department of Homeland Security and the Red Cross.
if white hats assume direct control of the blue bird to blast out Q55, this is what I'd expect them to use