I shared my SSN over email by accident. What should I do?

I was emailing the federal social security office and they gave me an option to share my case ID or SSN.

Since they were asking for it via email I felt like it was safe to share it. I didn’t know it wasn’t a good idea until after. Yes, it was stupid. I’m young and dumb. Still learning how to be an adult. Go easy on me.

Since i emailed it to a federal email I’m sure it’s fine, I doubt a federal employee will commit fraud. (I hope not).

But is there any extra steps i can take currently to make sure if my email gets hacked my SSN won’t be found?