How to mitigate hackers who farm their victims

Nation-states and savvy criminal hackers don’t pull uninformed, spur-of-the-moment smash-and-grab jobs on data networks. They reconnoiter and position themselves to slowly implement precise surgical maneuvers to exfiltrate your information treasures. Most of these attackers are capable of ensuring you remain unaware of their movements until it is to their benefit for you to know.
High-profile attacks that leveraged extended dwell time inside the networks of large retail chains such as Tar