Cyber-security

The BBC's move to the more secure delivery format HTTPS results in its pages being blocked.

Almost 100 million patients were affected worldwide, according to security researchers.

Taiwan company TSMC says it is now back in full production after being affected at the weekend.

Three Ukrainian citizens suspected of being part of a "prolific hacking group" are under arrest.

The ransomware attack has spread to email, telephone and door entry systems.

National Counterintelligence and Security Center says 2017 was a "watershed" year for such hacks.

Ransomware knocked out communications in the US offices of the shipping and haulage firm.

Researchers found a way to spy on motion-triggered clips logged by Swann Security's cameras.

Google's Chrome browser also flags Argos, Boohoo and Roblox as having security issues.

The attack by hackers on a health database has affected about a quarter of the population.