A number of appearances by Jennifer McAdam in promotion of her upcoming book Devil’s Coin, which tells the story of how she confronted self-styled “CryptoQueen” Ruja Ignatova and her experience as a victim of the OneCoin cryptocurrency fraud, have been cancelled after “serious security concerns” were raised.

The synopsis of the book, scheduled for publication on 8th August 2023 by Ad Lib and acquired by editorial director Duncan Proudfoot, reads: “Jen McAdam was a victim of the OneCoin global cryptocurrency fraud, which stole an estimated $27bn from ordinary people around the world. The evil genius of the scam was its target, society’s ‘unbanked’, not wealthy investors, and it robbed millions of their livelihoods and futures.

“The poor became poorer. The brutal plundering led by self-styled ’CryptoQueen’ Ruja Ignatova defied all legal and banking barriers, bamboozling financial authorities — until Jen McAdam fought back.”

Now, in a statement released by the publisher, book signings at the Riverside Lodge Hotel in Irvine and at the Waterstones in Ayr and on Argyle Street in Glasgow have had to be cancelled due to “serious security concerns”.

It states: “We regret to announce that appearances and book signings by Jennifer McAdam to promote her book, Devil’s Coin, about her battle to take down a $27 billion cryptocurrency fraud, have had to be cancelled.

“After serious security concerns were raised, Jennifer was advised not to go ahead with the events next week. Since taking on the fugitive OneCoin cryptoqueen Ruja Ignatova, she has suffered a campaign of intimidation, including legal challenges, death threats and vile online abuse.”

McAdam had planned to promote the book in a series of public events during August, but when new concerns were flagged this week, she was advised that her safety could not be guaranteed. The author said: “I am upset that my events have had to be cancelled but I did not want to go ahead in the light of the potential dangers highlighted to me.

“On the positive side, I am so proud of and thankful to my brave publishers around the world who would not be intimidated. I feel it is a triumph on their part allowing me to tell my story and those of the thousands of victims of a despicable fraud. Only with knowledge can we get justice.”