Analysts say that the theft indicates that criminal hackers are winning an online arms race with corporate and government security specialists.

Criminal hackers use a variety of techniques to steal private information from their victims.

Travellers who log on to their hotel's wi-fi network are at risk of having their credit card, bank account, address book and password details stolen by criminal hackers.

The government has announced a 1.9 billion cybersecurity strategy to counter the threat of criminal hackers and state agents.

Advertisers are being cheated out of billions of pounds a year by criminal hackers who use computers to 'watch' billions of online adverts per day.

Once in the target's phone, spyware lets a hacker access almost everything, including all messages, emails and incoming or outgoing calls, as well as pictures, cameras, microphones and location data.

Another customer discovered a rogue wireless access point had allowed a hacker access to sensitive records.

Hackers accessed up to 1.2m email addresses, names and phone numbers, and grabbed 21,000 unique bank account numbers and sort codes.

Unwitting hotel guests accept the upgrade, granting hackers access to all their confidential data.

The researchers have not revealed which apps are flawed, to avoid hackers accessing private information.

With an array of computer hardware and software at their disposal, ethical hackers attempt to duplicate an actual hacker attack.

The central bank said that several banks had been hit by an 'external hacker attack'.

The hackers attack the weakest link - those customers with mail accounts.

He now works as a $120,000 (76,500)-a-year security-focused infrastructure specialist, helping companies protect themselves from hacker attacks.

A variety of factors are powering the sector, from the threat of hacker attacks on critical systems to tougher financial regulations for public companies.

So who are the 'black hats', the malicious hackers who are in it for money or mischief or both?

Modules of the course include understanding cyber attacks and assessing whether networks are vulnerable to malicious hackers.

Malicious hackers shut down or attacked systems, or accessed personal data, in about 1,000 incidents at 240 educational institutions last year.

Mistakes happen - but the volume of data that the firm holds makes it a target for malicious hackers.

Additionally, they fear that such new powers could be used to spy on the general public rather than to pursue malicious hackers.

It was alleged that was the result of the deletion of voicemails by the phone hacker from her phone.

Sport has become a common target for computer and phone hackers and anti-doping agencies have come under attack in the past few years.

Friends with the phone hackers?

I felt it was a useless organisation run by people who wanted tea and biscuits and by phone hackers.