Jewish journalist criticises Twitter after becoming victim to the 'yellow Jewish star of the digital age'

He wrote: “It started with some Twitter users telling me I was a paedophile but very quickly the attacks turned into the sort of antisemitic language that you could have heard under the Nazis.”

Mr Cohen revealed that while Facebook automatically hid the negative reactions he received, Twitter pushed hundreds of hateful tweets directly to his phone.

He added: “One person found a photograph of me taken in Berlin’s Jewish Museum and Photoshopped in the yellow star that the Nazis put on Jews in the ghettos before sending them to the concentration camps. His friend added that soon it will be a real star, before I am killed.”

Mr Cohen revealed that many of the messages displayed his name in three sets of brackets, which he described as the “yellow Jewish star of the digital age”.

He said: “It turns out that this is a form of dog whistle for antisemites to inform other neo-Nazis who their current victims are.

“These bastards scour Twitter for Jews marked out in this way so that they can all pile in together, overwhelming the target and compounding their victimisation. In a sense the ((( ))), or echo, as the trolls call it, is the yellow Jewish star of the digital age.”

While Twitter says users can report inappropriate posts, Mr Cohen believes the social media site is not doing enough to stamp out online abuse.

He said: “It is not outside the realms of possibility for Twitter to develop an artificial intelligence bot to seek out those who spread this filth and block them before they cause real distress to the victims.

“It won’t, of course, due to pressure from free-speech campaigners in the US, but if Twitter doesn’t deal with this problem it has very little chance of increasing its user numbers.”

The Metropolitan Police are currently investigating the tweets.