The UK is seeing a rise in people suing companies, including some of the best known names in technology, en masse.
Research by Thomson Reuters shows the amount of damages being sought in what are known as class actions leapt from £4bn in 2021 to £26bn in 2022.
Apple, Google and Sony are among those being pursued for alleged breaches of competition law.
Lawyers say it is largely down to a 2020 legal decision that encouraged collective proceedings.
Single claimants could now bring legal actions on behalf of potentially huge numbers of people without their express mandate or even knowledge, unless they specifically opted out, Pinsent Masons LLP partner Alan Davis told BBC News.
"In Europe, only two other jurisdictions – the Netherlands and Portugal – offer the possibility of such 'opt-out' class actions, which explains the increasing popularity of the UK as a venue," he said.
Toby Starr, of legal firm Humphries Kerstetter, said the rise of technology companies in the past decade plus "the exposure of millions of people to the behaviour of these giant corporations" was another reason for the increase.
Thomson Reuters competition lawyer Warsha Kalé said: "With this kind of class action gaining popularity, corporates have to be wary of acting in what could be seen as an anti-competitive way.
"Fines for anti-competitive behaviour in the UK can already be as much as 10% of a businesses' worldwide turnover.
"Now, a business can pay that fine and then find themselves facing a separate class action composed of tens of thousands, or even millions, of customers."
Sony is facing a £5bn legal action over claims it abused its market position to overcharge customers buying digital games or in-game content via the PlayStation store.
Apple faces a £1.5bn claim over allegations it abused its monopoly power by overcharging customers through the App Store.
Meanwhile, online publishers last year filed a £13.6bn legal action against Google, and its parent company, Alphabet, over claims it abused its dominant position in online advertising, depriving website owners of revenue.
The UK's Competition Appeals Tribunal (CAT) first set a precedent to allow opt-out legal actions, after a £14bn class action against Mastercard, over claims high fees led to people paying too much in shops.
The threshold had been set at a "relatively low level", Mr Davis told BBC News.
"In effect, this has resulted in a proverbial opening of the 'floodgates' – more than 20 collective proceedings are currently at various stages before the CAT and a significant number have now been certified by the CAT to proceed to trial on an opt-out basis," he said.
There are some constraints though, as Mr Starr points out, including "the judicial resources available, the massive cost of these cases and the absence, outside of competition law, of the legal machinery to assess damages for large numbers of people".
PlayStation sued for £5bn over ‘rip-off’ games
Regulator needs teeth to curb big tech, MPs say
Amazon could pay UK shoppers £900m compensation
Russia replaces commander of Ukraine invasion force
Second batch of classified Biden files found – US media
Iran ready to execute British citizen, family say
More medics than UK, but French healthcare in crisis too
Why Americans seem more pro-Harry than Brits
The 11-year-old piano prodigy with Mozart-level talent. Video
How do El Niño and La Niña change the weather?
At-risk Afghan teacher feels abandoned by UK
The weirdest book ever written by a royal
Thousands in despair over mass eviction fears in India
How Cuban spy used incredible memory to betray US
What parents get wrong about milestones
20 of the best films to watch in 2023
How to build astonishing self-control
The people living in multiple timelines
© 2023 BBC. The BBC is not responsible for the content of external sites. Read about our approach to external linking.
- राशीफल2023.09.267 मई 2023, आज का राशिफल (Aaj Ka Rashifal): रविवार के दिन आज मेष वाले आज इस चीज से रहें बचकर, जानें सभी राशियों का हाल – Aaj Tak
- लाइफस्टाइल2023.09.26Healthy Snacks For Diabetics: डायबिटीज के मरीज हैं तो नाश्ते में खाएं ये … – दैनिक जागरण (Dainik Jagran)
- धर्म2023.09.26Raksha Bandhan 2023 जानिए कैसे शुरू हुआ रक्षाबंधन का पर्व मिलती हैं कई पौराणिक कथाएं.. – दैनिक जागरण (Dainik Jagran)
- धर्म2023.09.25सनातन धर्म पर सवाल उठाने वालों पर भड़के पंडित धीरेंद्र शास्त्री; बोले-रावण के खानदान के हैं बेचारे – News24 Hindi