DSis threatening to destroy my family with secret recording what do I do?

If you just ignore her in the hope that she won’t do anything you will always have this recording hanging over your head. I think you should get advice from the police as others have said or tell your dh.

I'd prob threaten her back with something.

@InsufficantLizard speak to your DH you can't live like this!

I’d tell DH that she’s blackmailing you and explain and give context; maybe even that she tricked you into saying it that’s why she recorded it. I’d also report it to the police. Once I’d done both I’d tell her you’d told DH so she is welcome to continue to blackmail and that you’ve reported it.

hard for us when you didn’t say either what you said and why and what she’s planning

Get evidence that she’s blackmailing you. I’d say what she’s asking from you would determine how serious this is and whether the police should be involved.

But get evidence - because it won’t look good on her, at least.

I would send her a text message (or email, just something that leaves a trail) stating that it's disgusting she is blackmailing you, she knows very well that the context of the recording is x,y,z and your DH would be disgusted with her blackmailing her own sister with this twisted “evidence."
Then if she does something you have time stamped evidence of the truth.

Tell him, tell him, tell him. Tell everyone. Tell everyone what she's doing and then never, ever speak to her again.

She might be dealing with the situation. Or working. Or busy doing something else.

Your only option is to get ahead of it. But honestly you sound guilty.

The relationship with her is dead now, so explain it all to your DH and never speak to her again.

I'd also tell your DM and anyone else expecting you to have a civil relationship with her exactly why you don't any more.

There is absolutely zero benefit in the OP lying to their DH, that would be the wrong thing to do. And to say it was generated by AI is nuts.

Explaining the context behind the recording and highlighting the DSis' appalling behaviour basically relishing the chance to shit stir, is likely to achieve a much better outcome.

Tell your husband. Accept the consequences and then cut your sister out of your life for good.

Does your DH know that your sibling can be a nasty or has he no idea.

If it were me in your position my DH would know that it would be basically my sibling just wanting to cause trouble as he knows just what she's like, and knows she thrives on trying to make others lives as miserable as she's made hers.
Therefore he's highly unlikely to believe her.

Edited to add...
If you tell you're DH it'll take away any future hold she feels she has over you.

Even better if you and DH stay united. It really is the only way to stand up to someone like her.

Is your DH a good man? Does he love you? Do you love him? He deserves to hear this, whatever it is, from you. It was said, no matter what the context, so it's out there. All you can do is tell your DH the full story.

"DH, a few months/years ago, I was talking to DSis about X, and I said something which she recorded. She is threatening to use the recording against me unless I do <whatever it is>. I need to tell you what the recording says. I'm sorry that I said it, but I was venting/angry/whatever and I didn't think about the way it would sound when it was taken out of context."

Where is the Op????
Hmmmm

I'd tell Dh she's picking out bits of a recording to change how it sounds, and then tell her you are going to the police about her threatening to release it to family to ruin you if you don't do what she wants.
I hope she has text you about telling Dh and the family. She reaps what she sows.

And I would also keep copies of any malicious messages she sends, but once you’ve spoke to your husband, I would block all communication with her. You don’t need someone like this in your life.

Ooooh good point. Otherwise she must have been recording constantly to get the one piece of falsely incriminating evidence. Unlikely.

Exactly this.

Mate, just tell him. If it’s that you think some bloke at work is gorgeous or you’re complaining about the light bouncing of your husbands head, it’s really not that bad.

How do you know she actually has a recording and isn’t bluffing ? Have you heard it ?

When this Is all out in the open i would then go nc with dsis she sounds vile

Telling your DH takes away all of her power. You have no choice. He may angry over it initially, but explain the context and how she's twisting it. It's far worse if he hears it from her.

I would tell your DH first because you’ll destroy her perceived power in one fell swoop. Then, you can explain the context to him. If he’s a reasonable person then he’ll understand and he can ask any questions he has.

First of all, ignore anyone saying to go along with her demands, because it's not as if this recording ceases to exist if you do. If you give in, she WILL do this again, because you'll have showed her the leverage works.

Second, you need to come clean with your DH. TELL him the context, and tell him generally what was said. You don't really need to be specific because once he knows whatever the worst bit is, your sister will probably not bother sharing the specifics.

You really need to get in there first so that you're the one controlling the narrative. If she gets in first, she gets to dictate the terms and leave him thinking the worst.