In the early 2000s a lot of people rolled with no encryption at all! In high school I'd drive around the nearby neighborhoods at lunch until I found an open wifi network so I could browse the net. Never took long to find one.
I remember when SunOS shipped enterprise servers with pretty much every service enabled. And the patching process was so cumbersome and risky many admins never bothered applying the recommended patch clusters
So much to explore and poke at!