Last November, a faked audio clip of London's mayor went viral. Marianna Spring talks to Sadiq Khan about the impact it had and tracks down it's suspected creator.

The clip used artificial intelligence to create a replica of Mr Khan's voice saying words scripted by the faker, disparaging Remembrance weekend with an expletive and calling for pro-Palestinian marches to take precedence.

In this series, Why Do You Hate Me?, Marianna Spring delves into her inbox to investigate extraordinary cases of online hate like this one. She meets the people at the heart of the conflicts, and in some cases brings them together, to see if understanding – even forgiveness – is ever possible.

Subscribe to BBC Sounds to hear the episodes first. And watch the episodes on BBC iPlayer too.

If you have been affected by some of the issues raised in this programme, please visit bbc.co.uk/actionline.

Host: Marianna Spring

The online world can be a breeding ground for hate. But why do some people behave the way they do on social media?

In each episode, the BBC's Disinformation and social media correspondent Marianna Spring - one of the most trolled BBC journalists - dives into her inbox and investigates a different extraordinary case of online hate to find out.

She meets the people at the heart of these conflicts, and in some cases brings them together, to see if understanding - even forgiveness - is ever possible.

You can listen to the first two episodes now on BBC Sounds and by listening to this trail you’ll get a sneak preview as to what’s coming up in the rest of the series.

You can watch the episodes on BBC iPlayer too.

If you have been affected by online abuse, please visit bbc.co.uk/actionline

Host: Marianna Spring

Marianna Spring talks to a survivor of the mass shooting in Las Vegas in 2017 about how posts on a social media account made him question an event he’d witnessed with his own eyes

Listen to more episodes of Why Do You Hate Me on BBC Sounds or wherever you get your podcasts. For this series, Marianna Spring (one of the most trolled BBC journalists) dives into her inbox and investigates a different extraordinary case of online hate to find out. She meets the people at the heart of these conflicts, and in some cases brings them together, to see if understanding - even forgiveness - is ever possible. Subscribe to BBC Sounds to hear the episodes first.

And watch the episodes on BBC iPlayer too.

If you have been affected by online abuse, please visit bbc.co.uk/actionline

Host: Marianna Spring

Cellphone footage courtesy of Lindsay Sherk

When Julia Wandelt posted on social media that she believed she was Madeleine McCann, she became a lightning rod for online anger. In the first of a new series exploring extraordinary cases of online hate and the possibility of forgiveness, Marianna Spring, the BBC's Disinformation and social media correspondent, speaks to Julia about her motives and regrets.

Listen to more episodes of Why Do You Hate Me on BBC Sounds or wherever you get your podcasts. For this series, Marianna Spring (one of the most trolled BBC journalists) dives into her inbox and investigates a different extraordinary case of online hate to find out. She meets the people at the heart of these conflicts, and in some cases brings them together, to see if understanding - even forgiveness - is ever possible. Subscribe to BBC Sounds to hear the episodes first.

And watch the episodes on BBC iPlayer too.

If you have been affected by some of the issues raised in this programme, please visit bbc.co.uk/actionline.

Host: Marianna Spring

Archive credits: Peteski Productions distributed through CBS Media Ventures.

The online world can be a breeding ground for hate. But why do some people behave the way they do on social media?

In each episode, the BBC's Disinformation and social media correspondent Marianna Spring - one of the most trolled BBC journalists - dives into her inbox and investigates a different extraordinary case of online hate to find out.

She meets the people at the heart of these conflicts, and in some cases brings them together, to see if understanding - even forgiveness - is ever possible.

Producers: Emma Close and Ben Carter

Marianna travels to Dublin to investigate a court case unfolding against the Irish Light conspiracy theory newspaper. Edel Campbell and her lawyer have been targeted by an extreme campaign of abuse after suing The Light which falsely claimed Edel’s son Diego died from a Covid vaccine, when in reality he had died by suicide. Conspiracy theorists worldwide have used dozens of tragic deaths to spread vaccine misinformation. This case is thought to be the first where a relative has sued. And what is the cost of taking action like this?

In this bonus episode, the BBC’S International Editor Jeremy Bowen and Disinformation and Social Media Correspondent Marianna Spring talk about their respective new podcasts: Frontlines of Journalism and Marianna in Conspiracyland.

Host: Marianna Spring

What will happen next in Conspiracyland? In the final episode, Marianna is back where she started, in the Devon town of Totnes. With the help of locals, she makes sense of the legacy left by the conspiracy theory newspaper and the wider movement all over the UK.

Host: Marianna Spring

New episodes released every Monday. If you're in the UK, listen to the whole series first on BBC Sounds.

And please get in touch with Marianna by emailing at: [email protected].

Do you know someone who’s fallen down the rabbit hole? During the investigation, Marianna’s inbox has been filled with messages from people sharing their stories about those they know and love who’ve been sucked into conspiracy theories. With the help of social psychologist Karen Douglas, Marianna explores how people find themselves in Conspiracyland, why they stay, and how some managed to escape.

Host: Marianna Spring

If you’ve been impacted by any of the issues that have come up in this podcast, please visit www.bbc.co.uk/actionline.

And please get in touch with Marianna by emailing at: [email protected].

Could people in the UK conspiracy theory movement ever become violent? Returning to the UK, BBC disinformation and social media correspondent Marianna Spring meets possibly the only person outside of the movement who has read as much of the Light as her: political scientist at King’s College London Dr Rod Dacombe. What insights will he have for Marianna from his years studying The Light and the conspiracy theory movement in the UK?

Host: Marianna Spring

New episodes released every few days. If you're in the UK, listen to the whole series first on BBC Sounds bbc.in/42x5sO5

And please get in touch with Marianna by emailing at: [email protected].