Hackers don't just want to pwn networks, they literally want to OWN your network – and no one knows they're there
https://www.theregister.co.uk/2019/04/02/network_busting_hackers_getting_harder_to_be_rid_of/
Network intruders are staying longer and going after wider swathes of machines with their attacks.
This is according to the latest quarterly report (PDF) from security company Carbon Black, which analysed various incident reports from about 40 of its enterprise customers. It found that attackers are doing more to cover their tracks in hopes of staying on the victim's network for longer periods of time.