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Google has admitted that for the past three years it has wrongly collected information people have sent over unencrypted wi-fi networks.

The issue came to light after German authorities asked to audit the data the company’s Street View cars gathered as they took photos viewed on Google maps.

Google said during a review it found it had "been mistakenly collecting samples of payload data from open networks".

The admission will increase concerns about potential privacy breaches.

These snippets could include parts of an email, text or photograph or even the website someone may be viewing.

In a blogpost Google said as soon as it became aware of the problem it grounded its Street View cars from collecting wi-fi information and segregated the data on its network.

It is now asking for a third party to review the software that caused the problem and examine precisely what data had been gathered.

"Maintaining people’s trust is crucial to everything we do, and in this case we fell short," wrote Alan Eustace, senior vice president of engineering and research.

"The engineering team at Google works hard to earn your trust – and we are acutely aware that we failed badly here."

‘Pushing the envelope’

Google said the problem dated back to 2006 when "an engineer working on an experimental wi-fi project wrote a piece of code that sampled all categories of publicly broadcast wi-fi data".

That code was included in the software the Street View cars used and "quite simply, it was a mistake", said Mr Eustace.

"This incident highlights just how publicly accessible, open, non-password protected wi-fi networks are today."

Dan Kaminsky, director of penetration testing for security firm Ioactive, said there was no intent by Google.

"This information was leaking out and they picked it up. If you are going to broadcast your email on an open wi-fi, don’t be surprised if someone picks it up."

John Simpson, from the Consumer Watchdog, told the BBC: "The problem is [Google] have a bunch of engineers who push the envelope and gather as much information as they can and don’t think about the ramifications of that."

This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.

Mothers-to-be think their own mothers know better than the medical profession when it comes to health advice, researchers say.

A University of London team talked to women who gave birth in the 1970s, 1980s and the 2000s.

Modern women were more likely to take a mixture of advice – but were still more likely to follow family wisdom.

One baby charity said family tips were useful, but medical advice should be sought if mothers-to-be had worries.

The researchers talked about pregnancy and childbirth advice to seven women who gave birth in the 1970s and 12 of their daughters who had babies in the 2000s.

They then also analysed interviews on the same topic which had been carried out with 24 women in the 1980s.

The 1970s women were most likely to take advice from family members.

But researchers found that women who had babies between 2000 and 2010 had to evaluate a wide range of information from doctors, midwives, books, magazines and, latterly, the internet – as well as that from their families.

In these women, it tended to be family advice that won out – particularly if a mother-to-be was dealing with a specific symptom.

One woman, Hetty, from the 2000s generation, said she had tried to stop drinking tea because she had read on the internet that caffeine could cause miscarriages in the first few weeks of pregnancy.

But she then added she had taken her grandmother’s advice that tea could help relieve morning sickness.

"She just used to stay in bed and have a cup of tea. And that did help actually."

‘Strike a balance’

Professor Paula Nicolson from Royal Holloway, University of London, who led the study, said: "When it comes to the crunch – if women feel sick for example – they will take their mother’s or their grandmother’s advice.

"They wouldn’t necessarily recognise how important it was to them, but it would override the science."

She added: "Taking all the guidelines too seriously leads to anxieties. Lack of self-confidence also can lead to worry about ‘doing the wrong thing’ which is potentially more harmful than taking the odd glass of wine or eating soft cheese."

Jane Brewin, chief executive of baby charity Tommy’s, said women had to "strike a balance" about what advice they took.

"It’s only natural to want to talk about the significant changes that happen to a woman’s body and how she feels; mums and close friends often have first-hand experience and tips that are helpful.

"However we always stress that if any mum-to-be is worried about anything during their pregnancy they should seek medical advice without delay."

This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.