NSW Accidentally changed someone's password without permission. What do I do?

[237ivyn923875n3]

So I worked in IT at my college (quit 4 months ago) and out of curiosity I looked up a friend's friend's profile to see what courses they were doing. I know this is already a breach of privacy.
I was going to close the tab after I was done but I accidentally clicked on the "Generate and set random password" button. I cannot reverse this change. I don't know what the password is. I closed the tab immediately.
This still haunts me every day... it happened 10 months ago. If you went on their profile and checked the logs, you would see that a change as been made by me. What should I do? should I admit it to my (previous) boss?

Any advice on what to do next is appreciated.

 

[Rod]

This still haunts me every day...

Good, it should. Hopefully you've learnt your lesson and never do something silly again.

As this is at the very low end of offending, and you have probably learnt your lesson, I'd not say anything.

Keep quiet, learn, and move on I say.

 

[237ivyn923875n3]

Good, it should. Hopefully you've learnt your lesson and never do something silly again.

As this is at the very low end of offending, and you have probably learnt your lesson, I'd not say anything.

Keep quiet, learn, and move on I say.

Thank you so much for the reply. Yes, I'm so ashamed of what I've done and it's one of the reasons why I left the job.
What I am most afraid of now is the person finding out. If they ended up working there too, they could see the change that has been made. What's the worst that could happen?

 

[Rod]

Unlikely to be much some 10 months later. The person concerned may just think they clicked on something they shouldn't have, or there was an IT glitch.

But no point worrying. Accept you did wrong, and move on.