'It's been relentless' say IT workers on frontline of PHP cyber security scramble

Microsoft boss Satya Nadella says he has not seen anything like the PHP emergency "in a long, long time".

Referencing the ongoing global efforts to fix the critical cyber-security flaw in millions of websites, he told a conference "it was a long day and a long night, I know, for all the IT and security folks".

Other IT and cyber experts have told the BBC about their struggles in the last 48 hours, whose stories give us an insight into…