T-Cell has released more information about its most up-to-date knowledge breach, and whereas the corporate’s findings fall wanting the reported 100 million information, the numbers are staggering.

Whereas saying its investigation continues to be ongoing, the corporate confirmed that information of over 40 million “former or prospective customers” who had beforehand utilized for credit score and seven.8 million postpaid prospects (those that at the moment have a contract) had been stolen. In its final earnings report (PDF), T-Cell stated it had over 104 million prospects.

The information within the stolen recordsdata contained vital private data included first and final names, dates of start, Social Safety numbers, and driver’s license / ID numbers — the type of data you may use to arrange an account in another person’s identify or hijack an present one. It apparently didn’t embrace “phone numbers, account numbers, PINs or passwords.”

That isn’t the tip of it, both, as over 850,000 pay as you go T-Cell prospects had been additionally victims of the breach, and for them, the uncovered knowledge contains “names, phone numbers, and account PINs.” Affected prospects have already had their PINs reset and can obtain a notification “right away.” There was additionally unspecified data accessed for inactive pay as you go accounts. Nonetheless, T-Cell says, “No customer financial information, credit card information, debit or other payment information or SSN was in this inactive file.”


Clients belief us with their personal data and we safeguard it with the utmost concern. A latest cybersecurity incident put a few of that knowledge in hurt’s approach, and we apologize for that. We take this very critically, and we attempt for transparency within the standing of our investigation and what we’re doing to assist defend you.

The discover contains boilerplate language saying that “We take our customers’ protection very seriously,” but it surely rings particularly hole from T-Cell contemplating that that is a minimum of the fourth knowledge breach uncovered in the previous couple of years, together with one in January. Based on the corporate’s assertion, its investigation started primarily based on a report of somebody claiming in an internet discussion board that they’d compromised T-Cell’s servers.

A Twitter account promoting stolen knowledge on the market claimed the assault affected all 100 million prospects and included IMEI / IMSI knowledge for 36 million prospects that might uniquely determine particular gadgets or SIM playing cards, however T-Cell’s announcement doesn’t verify that’s the case.

T-Cell has added a page on its site the place prospects can go for data in addition to shortcuts to vary their PINs and passwords. It’s providing two years of free id safety companies from McAfee, recommends postpaid prospects change their PIN, and mentions its Account Takeover Safety capabilities to stop SIM-swapping assaults.

Replace August 18th, 4:49PM ET: Added hyperlink and knowledge relating to T-Cell’s devoted web site, and its apology assertion.

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