LJ Rich looks at some of the best technology news stories of the week.

Some UK firms are struggling to fill roles demanding digital skills, so how easy is it to retrain?

The BBC’s Ros Atkins looks into Bitcoin’s affect on the environment after Tesla suspended vehicle purchases using Bitcoin due to climate change concerns.

Reports say Colonial Pipeline paid cyber-criminal gang DarkSide a ransom to prevent a data leak.

The tech giant is tightening its grip on retail as the coronavirus pandemic continues.

Irish health chiefs temporarily shut down its IT system which severely impacted some services.

The world’s richest man will reportedly set sail next month on one of the largest superyachts ever built.

Users yet to accept new terms and conditions will now receive “persistent” reminders.

The President of the US tech giant told the BBC that the shortage could last another two years.

Teacher Julie Bushnell says she lost her deposit for a new home in a cryptocurrency giveaway con.

Busyness data apps are expected to increase in use as commuters return to offices after lockdown.

Peer-reviewed research suggests the contact-tracing app prevented between 284,000 and 594,000 cases.