Image copyright Getty Images Image caption Could technologies of the future allow hackers into precious corners of our minds? Imagine being able to scroll through your memories like an Instagram feed, reliving with vivid details your favourite life moments and backing up the dearest ones.
Now imagine a dystopian version of the same future in which hackers hijack these memories and threaten to erase them if you don't pay a ransom.
It might sound far-fetched, but this scenario could be closer than you think.
Opening up the brainAdvances in the field of neurotechnology have brought us closer to boosting and enhancing our memories, and in a few decades we could also be able to manipulate, decode and re-write them.
The technologies likely to underpin these developments are brain implants which are quickly becoming a common tool for neurosurgeons.
They deliver deep brain stimulation (DBS) to treat a wide array of conditions, such as tremors, Parkinson's, and obsessive-compulsive d..
Image copyright AFP/Huawei Image caption Ren Zhengfei is one of China's richest businessmen When Huawei's founder and president Ren Zhengfei started his firm back in 1987 with just 21,000 yuan – the equivalent of about $6,600 today – little did he know his creation would grow to become a telecoms giant and make him one of the richest people in the world.
With his personal fortune estimated at about $1.7bn, his company currently employs 180,000 workers around the globe – and its annual revenue is forecast to be $125bn (£96bn) this year.
Mr Ren is something of a recluse, but in the past few weeks he has been talking to journalists, defending his firm amid rising pressure from the US and other countries over security concerns about Huawei's role in building 5G networks across the world – and the nature of its links to China's government.
„We would rather shut Huawei down than do anything that would damage the interests of our customers,” he countered. „I support the C..
Image copyright Celonis Image caption Alexander Rinke came up with the idea for the business while at university The BBC's weekly The Boss series profiles different business leaders from around the world. This week we speak to Alexander Rinke, co-founder of German technology company Celonis.
When Alexander Rinke wanted some of the world's biggest companies to employ his small start-up business he came up with a novel approach – he would send their bosses handwritten letters.
„We knew if we sent an email it could just be deleted,” he says.
„And if we sent out typed letters then their secretaries would open them, and bin them as junk mail.
„But with a handwritten note, it seems more personal, it could have been a letter from a family member, or a friend.”
Image copyright Getty Images Image caption It was Alexander's idea to send business leaders handwritten letters Alexander launched Celonis when he was 22 with two friends, Martin Klenk and Bastian Nominacher, in 2011 aft..
Image copyright Lidl Image caption Lidl opened its first store in the UK in 1994 Lidl, along with its fellow German discounter Aldi, might be growing strongly in the UK right now but it wasn't always that way.
Its former UK boss, Ronny Gottschlich, says that in the early years the discounters were really small players.
„If anything it was considered to be a poor man's shop. The German discount model would sit in the corner and people thought you couldn't do your weekly shopping in there.”
But things began to change around the time of the financial crisis in 2009. „People were looking at how they could save money but it wasn't the only reason more people shopped there. We made it more attractive for the British shopper, rather than taking the German model and copying it like for like.”
Lidl now has more than 700 stores in the UK and is opening a new one on average every week. It plans to invest £1.45bn in the next two years.
Lidl in numbers €96.9bn
Total sales of..
Image copyright Facebook/Quadriga Image caption Gerald Cotten When the 30-year-old founder of a Canadian cryptocurrency exchange died suddenly, he took the whereabouts of some C$180m ($135m; £105m) in cryptocurrency to his grave. Now, tens of thousands of Quadriga CX users are wondering if they will ever see their funds again.
In 2014, one of the world's biggest online cryptocurrency exchanges – MtGox – unexpectedly shut down after losing 850,000 Bitcoins valued at the time at nearly $0.4bn (£0.3bn).
Its meltdown shook investors in the volatile emerging marketplace – but the calamity at the Tokyo-based company proved a boon for a new Canadian online cryptocurrency exchange.
„People like the fact we're located in Canada and know where their money is going,” Quadriga CX founder Gerald Cotten said at the time.
Some five years later, Cotten's sudden, untimely death has left thousands of his customers scrambling for information about their own missing funds.