It appears the threat is being sent via email as a cryptocurrency extortion scam. One Twitter user took a screenshot of a suspicious email they believe ...
source https://www.google.com/url?rct=j&sa=t&url=https://thenextweb.com/hardfork/2018/12/13/cryptocurrency-scammers-target-schools-hospitals-government-offices-with-bomb-threats/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNFWyWlyICXSpcjkt-01sFy0m5rzLA
