Is my computer being hacked? I have reason for suspicion that I'm being hacked. On top of that, my MacBook's screen will light up (several times a week) when it is asleep, showing the log in screen. It will fall back asleep within a minute or so. It happened this morning, and I wondered if this had anything to do with my hacking suspicions, so I looked at the system log. I don't know much about systems, but I notice the second line says something about the Sandbox being exited. It would be great help if any of you know how to decipher this and could let me know if anything is out of the ordinary.

Feb 25 08:33:00 Rachels-MacBook-Pro syslogd[40]: ASL Sender Statistics
Feb 25 08:33:01 Rachels-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.sandboxd[7218]): Service exited due to SIGALRM | sent by kernel_task[0]
Feb 25 08:33:02 Rachels-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.bsd.dirhelper[7246]): Endpoint has been activated through legacy launch(3) APIs. Please switch to XPC or bootstrap_check_in(): com.apple.bsd.dirhelper
Feb 25 08:33:03 Rachels-MacBook-Pro systemstats[52]: assertion failed: 18G103: systemstats + 668620 [D8A96B8F-0E65-3EA8-9EEE-982901402221]: 0x7fad6ce07390
Feb 25 08:33:48 Rachels-MacBook-Pro systemstats[52]: assertion failed: 18G103: systemstats + 668620 [D8A96B8F-0E65-3EA8-9EEE-982901402221]: 0x7fad6ce07390
Feb 25 08:34:05 Rachels-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.airport.wps): Service only ran for 6 seconds. Pushing respawn out by 4 seconds.
Feb 25 08:34:33 Rachels-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.airport.wps): Service only ran for 8 seconds. Pushing respawn out by 2 seconds.
Feb 25 08:34:44 Rachels-MacBook-Pro com.apple.xpc.launchd[1] (com.apple.airport.wps): Service only ran for 9 seconds. Pushing respawn out by 1 seconds.
There's nothing in that log that is "non-Apple".

If you think that either:


you've installed some software that was not what it claimed to be
someone has had physical access to your machine and/or knowledge of your admin password


then it is possible that you might have 'malware' on your Mac. You can check whether there is anything of that kind using MalwareBytes, which should also help to remove it.

However, old school "hacking", in the sense of someone remotely pushing something onto your computer (or reading from it, or controlling it) is exceedingly rare, and exactly what the security on your computer is designed to prevent. 

If you do fear the worst, then the only course of action is to erase the disk and reinstall the OS. Then restore your data from your backup, but not any apps or Library folders.