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The U.S. state of Washington has sued T - Mobile over allegement the telephone giant failed to secure the personal information of one thousand thousand of state residentsprior to an August 2021 datum breach , which move on to affect more than 79 million customers across the United States .

Ina statementannouncing the lawsuit , Washington lawyer superior general Bob Ferguson said T - Mobile “ recognise for years about certain cybersecurity vulnerabilities and did not do enough to address them . ” Ferguson enounce the suit seeks financial damages under the state ’s consumer shelter laws and to order T - Mobile to improve its cybersecurity policies .

The hack against T - Mobile in August 2021 was the in vogue in a series of data falling out at the company over late years , with at least five security system incident date stamp back to 2018by TechCrunch ’s count . The rift allowed a hacker access to T - Mobile ’s systems and exfiltrated customer name , date of nascency , and Social Security routine , as well as equipment driver ’s license information . Some of the slip T - Mobile customer information was subsequently bring out on a screw cybercriminal forum .

Ferguson accused T - Mobile of provide unequal notification to touched customer following the breach that “ omitted critical data and downplayed the asperity , ” which Ferguson say affected the power of consumer to assess their risk of personal identity stealing or fraud .

“ This significant data breach was altogether avoidable , “ Ferguson was quote as saying in the press release . “ T - Mobile had old age to desexualize cardinal vulnerabilities in its cybersecurity system of rules — and it break down . ”

Thelawsuit , file in a Seattle Union court , contained meaning redactionsmasking specific technological details of the August 2021 hack , but the charge appears to detail aver proficient security deficiencies and internal company policies that may have made it easier for the hacker to access and download client information from T - Mobile ’s server .

The unredacted portions note that the cyber-terrorist targeting T - Mobile discovered an “ easily guessable username and password ” ; that T - Mobile “ used weak credentials ” on accounts for access its intimate systems ; and that T - Mobile “ tolerate the connection from the terror actor ’s IP address ” from outside its connection . The complaint also read T - Mobile did not implement rate - limiting on any login attempts , allowing the cyber-terrorist to freely test as many credentials without lock the employee report in interrogation .

The suit also says the company ’s “ inadequate monitoring and alerting configuration ” made it easier for the hack to get at T - Mobile ’s meshing without being noticed .

Ferguson ’s ailment adds that T - Mobile ’s public statement misrepresented the sufficiency of its cybersecurity defenses and the threat to T - Mobile ’s customers ’ data found on the dark internet , and said the fellowship ’s demeanor “ had the capacity to deceive a substantive number of Washington consumer . ”

When reached by TechCrunch prior to publication , T - Mobile did not supply input at insistency clock time . In a financial statement provided by T - Mobile interpreter Michelle Jacob after this storey posted , the society said the lawsuit amount as a “ surprise . ”

“ While we disagree with their approach and the filing ’s claim , we are clear to further dialogue and welcome the chance to decide this outcome , as we have already done with the FCC , ” the program line said .

Updated with comment from T - Mobile .