U.S., Canada, Australia, Australia and New Zealand are said to be investigating a wave of bogus bomb threats that have been sent to a variety of organisations late on Thursday. Recipients told there was a hidden bomb that would detonate unless a Bitcoin ransom was paid. So far, it appears that none of the hoaxers intended victims have coughed up the $20,000 worth of Bitcoin. Police have confirmed that they do not believe the threats to be genuine, but you can understand the anxiety that some schools and businesses will have experienced receiving an email like this.”]
Source: https://grahamcluley.com/international-email-bomb-hoax-proves-to-be-a-spectacular-failure/