A group calling themselves "Cozy Bear" has been emailing various companies with an extortion letter, demanding payment and threatening targeted DDoS attacks if their demands are not met. \r\n Cozy Bear, also known as APT29, is known for its customized malware and attacks on commercial entities and government organizations across the globe. What they're not known for though, are extortion campaigns. As such, Akamai believes the letter is from a copycat group leveraging the Cozy Bear name as a means to invoke fear and panic. Their extortion letter actually suggests victims perform a Google search on their name, which immediately returns results related to the infamous group.  \r\n So far, multiple companies have reported receiving an email demanding a sum of about $17,500 in Bitcoin, or 2 BTC, at the time this advisory was written.…