ISC StormCast for Tuesday, April 4th, 2023

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/