One password is believed to have been all it took for a ransomware gang to destroy a 158-year-old company and put 700 people out of work.

KNP - a Northamptonshire transport company - is just one of tens of thousands of UK businesses that have been hit by such attacks.

In KNP's case, it's thought the hackers managed to gain entry to the computer system by guessing an employee's password, after which they encrypted the company's data and locked its internal systems.

KNP director Paul Abbott says he hasn't told the employee that their compromised password most likely led to the destruction of the company.

"Would you want to know if it was you?" he asks.