Randy Abrams, the independent analyst who noticed the possible hack, said he was attempting to check some information in his credit report late on Wednesday when one of the bogus pop-up ads appeared on Equifax's website.
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"We are aware of the situation identified on the equifax.com website in the credit report assistance link", said a spokesperson".
Contending that she remains "extraordinarily concerned" about the incident, Warren included almost 80 questions in her letter to Smith regarding the extent of the breach, Equifax's initial response and issues the company has faced in its efforts to assist consumers in wake of the hack, among other things.
Last month, Equifax disclosed that it had sensitive information from 145.5 million people compromised, leading to multiple investigations and a Justice Department probe. "We appreciate your patience during this time and ask that you check back with us soon", the page informs users-without any mention of the fact that earlier visitors to the page may have been tricked into installing adware.