3CX got breached and used for supply chain delivery. I don’t know if anybody remembers my #3CX thread on Twitter last year but.. uh.. it got fun. https://www.reddit.com/r/crowdstrike/comments/125r3uu/20230329_situational_awareness_crowdstrike/
#3CX supply chain compromise of their customers was caused by a supply chain breach of #TradingTechnologies. There's probably other victims. https://www.mandiant.com/resources/blog/3cx-software-supply-chain-compromise
I had a big thread on #3CX supply chain hack here but it accidentally got deleted. One of the things I criticised them on was AV alert handling as they missed the early warning signs. Just got a mail from them, they’re fixing it.
To give them credit, they’ve done a really job at listening and responding in the incident.