After investigation, the ICO today declared Google's collection by it's Street View cars of unencrypted WiFi data was inadvertent and harmless.

"The information we saw does not include meaningful personal details that could be linked to an identifiable person," it said.

The UK's Information Commissioner's Office have visited Google's offices to assess samples of the data the search giant had collected.

"Whilst Google considered it unlikely that it had collected anything other than fragments of content, we wanted to make our own judgement as to the likelihood that significant personal data had been retained and, if so, the extent of any intrusion," the ICO said.

"On the basis of the samples we saw we are satisfied so far that it is unlikely that Google will have captured significant amounts of personal data."

The ICO said it had found no evidence that data captured by Google had caused or could cause any individual harm, however it did acknowledge that Google "was wrong to collect the information". UK privacy advocate, Privacy International who drew the ICOs attention to the breach pointed out that the data was intentionally collected as Google as it used software to sort the encrypted and unencrypted data it collected to dump the unencrypted data.

The Metropolitan Police have are commencing their own investigations into Google's alleged data breach.