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Equifax Reported 15.2 Million Records Of U.K. Persons Exposed

Equifax logo Yesterday, Equifax's United Kingdom (UK) unit released a press release about the credit reporting agency's massive data breach and the number of breach victims. A portion of the statement:

"It has always been Equifax’s intention to write to those consumers whose information had been illegally compromised, but it would have been inappropriate and irresponsible of us to do so before we had absolute clarity on what data had been accessed. Following the completion of an independent investigation into the attack, and with agreement from appropriate investigatory authorities, Equifax has begun corresponding with affected consumers.

We would like to take this opportunity to emphasize that Equifax correspondence will never ask consumers for money or cite personal details to seek financial information, and if they receive such correspondence they should not respond. For security reasons, we will not be making any outbound telephone calls to consumers. However, customers can call our Freephone number on 0800 587 1584 for more information.

Today Equifax can confirm that a file containing 15.2m UK records dating from between 2011 and 2016 was attacked in this incident. Regrettably this file contained data relating to actual consumers as well as sizeable test data-sets, duplicates and spurious fields... we have been able to place consumers into specific risk categories and define the services to offer them in order to protect against those risks and send letters to offer them Equifax and third-party safeguards with instructions on how to get started. This work has enabled us to confirm that we will need to contact 693,665 consumers by post... The balance of the 14.5m records potentially compromised may contain the name and date of birth of certain UK consumers. Whilst this does not introduce any significant risk to these people Equifax is sorry that this data may have been accessed."

Below is the tabular information of risk categories from the Equifax UK announcement:

Consumer groups Remedial action
12,086 consumers who had an email address associated with their Equifax.co.uk account in 2014 accessed

14,961 consumers who had portions of their Equifax.co.uk membership details such as username, password, secret questions and answers and partial credit card details - from 2014 accessed

29,188 consumers who had their driving license number accessed

We will offer Equifax Protect for free. This is an identity protection service which monitors personal data. Products and services from third party organizations will also be offered at no cost to consumers. In addition to the services set-out above, further information will be outlined in the correspondence.

637,430 consumers who had their phone numbers accessed Consumers who had a phone number accessed will be offered a leading identity monitoring service for free.

Some observations seem warranted.

First, the announcement was vague about whether the 15.2 million U.K. persons affected were included in the prior breach total, or in addition to the prior total. Second, the U.K. unit will send written breach notices to all affected consumers via postal mail, while the U.S. unit refused. The U.K. unit did the right thing, so their users are confused by and don't have to access a hastily built site to see if they were affected.

Third, given the data elements stolen some U.K. breach victims are vulnerable to additional frauds and threats like breach victims in the USA.

Kudos to the Equifax U.K. unit for the postal breach notices and for clearly stating the above risk categories.

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