Hunt is a Microsoft regional director and also a Microsoft Most Valuable Professional for Developer Security.
He is the creator of the website HaveIbeenpwned.com‚ which warns people that their details have been compromised in corporate hacks.
Hunt later said on Twitter that he had confirmed that the breach was legitimate with a number of parties.
He said it affected more than 30-million records‚ and he had confirmed that it included full ID numbers.
“Let us assume that this is real data from real people. This is a very risky and dangerous development. Hackers can get access to ID numbers‚ names and physical addresses. That is the type of information cyber criminals use for identity theft.”
Von Solms said cyber criminals can use that information to obtain credit.
“With enough personal information‚ one can do damage to a person by illegally opening credit accounts or make bookings. It is an extremely big risk. The great risk is to the individual whose data has been breached.”
Von Solms said the big question was whether the data was still where Hunt found it or whether it had been removed.
“He made a back-up. There are others who might have found it and made back-ups.”