https://www.usatoday.com/story/news/2018/01/15/hawaiis-false-missile-alert-how-happened/1033895001/

https://www.cnn.com/2018/01/15/us/texts-hawaii-missile-alert-mishap-trnd/index.html#:~:text=Hawaiian%20residents%20and%20vacationers%20spent,corrected%20a%20false%20alarm%20message.

https://www.theverge.com/2019/2/21/18234901/cdc-hawaii-false-missile-alarm-reactions

https://www.bbc.com/news/world-us-canada-42677604

https://en.wikipedia.org/wiki/2018_Hawaii_false_missile_alert#:~:text=On%20the%20 morning%20of%20 Saturday,the%20U.S.%20state%20of%20Hawaii.