The Twitter account of Northern Ireland secretary Chris Heaton-Harris has become the latest to be compromised as a string of offensive messages was posted before being deleted. It comes only days after the Twitter profile of education secretary Gillian Keegan also fell victim to hackers.

In a string of high-profile hacking incidents, Piers Morgan’s account has also been compromised in recent weeks.

In the wake of Elon Musk’s takeover of the social media platform and the departure of around half the company’s staff amid a ‘chaotic’ staff restructuring, there have been concerns raised over the strength and responsiveness of Twitter’s security systems.

There have also been reports of millions of user email addresses being scraped from the platform as part of a data leak and offered to hackers on online forums.

Cyber-security experts have suggested that the biggest direct security threat to users is not in fact any internal issues at the company, but in people...