efile.com Compromise; MyCloud Breach; 3CX GoPuram Backdoor efile.com compromise https://isc.sans.edu/forums/diary/Supply%20Chain%20Compromise%20or%20False%20Positive%3A%20The%20Intriguing%20Case%20of%20efile.com%20%5Bupdated%20-%20confirmed%20malicious%20code%5D/29708/ Western Digital MyCloud Breach https://www.bleepingcomputer.com/news/security/western-digital-discloses-network-breach-my-cloud-service-down/ 3CX Compromise Affected Cryptocoin Exchanges https://securelist.com/gopuram-backdoor-deployed-through-3cx-supply-chain-attack/109344/ keywords: efile.com; irs; taxes; western digital; 3cx; crypto;