The Tweet from the official UK Civil Service account was only up for 10 minutes but enthralled users were hasty to share it tens of thousands of times - screenshots included for posterity, of course.

"Arrogant and offensive. Can you imagine having to work with these truth twisters?" the tweet read.

Posted soon after UK Prime Minister Boris Johnson's press conference in which he defended his chief aide, Dominic Cummings, for travelling during lockdown, no doubt resonated with some in the country.

Twitter users have jumped to laude the mystery writer. "This is the ultimate way to give notice," one user wrote.

The UK Cabinet Office responded sometime later in a tweet, "An unauthorised tweet was posted on a government channel this evening. The post has been removed and we are investigating the matter."

Mr Cummings had come under fire for travelling 400km during lockdown, to his parent's home after his wife became ill with flu-like symptoms. He claimed it was to ensure he would have childcare in case he got ill.

Mr Johnson said Mr Cummings had "acted responsibly, legally and with integrity, and with the overriding aim of stopping the spread of the virus and saving lives".

Some Australian politicians are no strangers to unauthorised behaviour on their social media accounts.

In 2017, there were calls for an investigation into then defence industry minister Christopher Pyne's social media after hackers were blamed for "liking" an explicit gay pornographic video.

Labor's calls were dropped soon after when it was clear Mr Pyne's account was was a personal one and there were no security issues.