Transcript for Former Playboy model apologizes for body-shaming 70-year-old
She's a celebrated playboy playmate who fired a torpedo into her own career with a single click from her phone. Dani Mathers speaking out after pleading no contest to invasion of privacy charges for toast posting the photo of an unsuspecting woman naked online. She's not the only one learning the hard way about mistakes we can't take back on social media. Here's ABC's kayna Whitworth. Reporter: All it took was a single Snapchat to turn Dani Mathers from playmate to pariah. To hide out at my mother's house at age 30. Because of something I've done. It just felt really low. Reporter: Last year the 2015 playmate of the year was on top of the world, making videos for "Playboy." Very nice, Dani, do that again, beautiful. Reporter: One afternoon last July at her Los Angeles gym, she took this picture of a 70-year-old woman in a locker room nude. And posted it with the caption "If I can't unsee this then you can't either." "Playboy's" 2015 playmate of the year facing backlash -- The model took a photo of the naked woman and posted it on Snapchat. LAPD has launched a criminal investigation -- Reporter: She says it was someone else who combined the photo with this picture of her from the same day. The combination went viral and the backlash online immediate and relentless. People calling her repulsive and vile. Accused of body shaming, Mathers says she even got death threats. I had lost my privacy after taking privacy from somebody else. Was it wrong to take the photo? Was it wrong to post it? Absolutely. Yes on both accounts? Yes on both accounts. Reporter: Mathers maintains she was trying to send the picture to a friend privately as part of an ongoing conversation but accidentally posted it publicly. It had no intent to be honest, I just finished an hour-long workout, sitting in a scalding hot sauna, I was exhausted, just in the middle of this conversation, and I literally just looked up, snapped a photo, and sent it. To what I thought was a friend. And it ended up being all of Snapchat. Reporter: She apologized online. That was absolutely wrong. And not what I meant to do. Reporter: But that wasn't enough to stop the fallout. Her once-promising career took a nose dive. Her radio show appearances were canceled. Modeling work dried up. Her relationship with "Playboy" ended. You went from being the playmate of the year to no longer being with the company because of this? Yeah. It's been very hard financially, mentally. I worked very hard to get to that point. And kind of had to just say good-bye to it for now. Reporter: Authorities investigated the incident and charged her with criminal invasion of privacy. When you are undressed or partially undressed, you should be able to be sure that no one is going to, without your permission, distribute your photograph online for whatever reason. It wasn't just mean, it was illegal. Did you know that? I didn't have an intention of breaking a law. I just wasn't thinking. Reporter: Mathers is represented by celebrity attorney Tom messerrow, best known for defending Michael Jackson. None of us are perfect, we make mistakes throughout our lifeti lifetime. The question is how should a mistake be treated? Call 911. Reporter: She's not the first to make a mistake like this. Oh, oh! Seriously? Yeah, seriously, get some help. Reporter: Dr. Angeli, fourth year newer at resident, in the midst what was she said was an intoxicated temper tantrum while trying to get into someone else's Uber. . I'm a 5 foot girl who weighs 100 pounds. I'm getting really like belligerent right now. Reporter: This drunken confrontation with her Uber driver caught on camera and posted on social media. Turned her into an internet villain. It's been horrible. My family, first of all, has been targeted. Our home address was released. And people were showing up to the house. People were sending packages to the house. Reporter: All this despite the fact that she immediately apologized to the driver and paid him damages. He accepted my apology. And I was very grateful he didn't press any charges. I had no further problems with him that night. Reporter: But once the video started exploding on the internet, the judge and juries on social media began weighing in. Calling her an arrogant drunk little brat, that she be charged with assault, should not be practicing medicine. Her employer Jackson health system put her on administrative leave and moved to terminate her. I would not wish this on my worst enemy. I've received death threats. I received messages people telling me, you should kill yourself, you don't deserve to live. Multiple messages saying, you should have been raped that night. This poor girl had a bad day, and she's going to pay the price. We've all had a bad day, and we should consider ourselves lucky that we didn't get caught when we were talking to someone this way. All day, every day, it's something that I've learned from this, think before you act, think before you speak, before you type. Reporter: Dani Mathers says she of all people should have known better, claiming she too has been body shamed. I've gotten that I'm too short to do certain jobs, I've been that I'm too skinny. Can you understand how it might be hard for someone in the public to understand where you're coming from when I ask you about body shaming, you say yes, people tell me I'm too skinny? I do understand that that won't be perceived in a very easy way. But I do stand by that. I think there's all forms of bullying. Reporter: Mathers pled no contest in court last week. She was sentenced to 30 days of community service. What do you have to say to people who may watch this and think, you're pandering, you're just trying to say the things that they want to hear so that people won't hate you? I'm not a bully. I am a human who made an awful mistake. And it's something that can't be taken back. Reporter: But that is little solace for the victim, who prosecutors say instantly recognized herself in the snap. Obviously she was humiliated. And she didn't want to be a subject of such photograph. Is there anything you want to say to her? I just want her to be able to move on and move forward in her life and not feel judged and not feel that she wasn't enough or that what she was doing was being ridiculed. Because it had nothing to do with that. And that I'm so sorry. It was never my intention to hurt her. And that I hope that she can forgive me. I don't expect her to forget. I don't expect her to like me. I just -- I really want her forgiveness. Reporter: For "Nightline" I'm kayna Whitworth in Los Angeles.
This transcript has been automatically generated and may not be 100% accurate.