If it’s connected to the internet, it’s under attack. Natalia Nowak explains:
The math here is rather straightforward. If a device you use is connected to the public internet, regardless of router configurations and firewalls, it is subject a constant barrage of attacks. Each of those devices has an IP (internet protocol) address and that makes it a target of hackers and criminals and attacking bots from all over the world. It’s likely that most Mac users have never seen a firewall log, and if you did you would be afraid; be very afraid.
True that. I manage dozens of websites and multiple servers and the intrusion attempts are constant.