A Malware attack at US Cellular exposed 4.9 million customers’ data

https://www.techtimes.com/articles/256503/20210129/uscellular-data-breach-hackers-gained-access-users-personal-pin-code.html

Exploit: Credential Compromise
US Cellular: Mobile Phone Company 

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Risk to Business: 1.379 = Extreme = Severe USCellular, the fourth largest mobile network in the US, has suffered a data breach after a successful malware attack. Hackers used malicious code disguised as a routine software update to gain access to systems including its Customer Relationship Management (CRM) and client records. This is not USCellular’s first time at this rodeo – the company has had consistent information security problems.

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Individual Risk: 1.321 = Extreme USCellular advised customers that their account records including name, address, PIN code, and cellular telephone numbers(s) as well as information about the customer’s wireless services including service plan, usage and billing statements, personal information, PIN code, service plan, and billing statements might have been compromised. However, data such as social security numbers and credit card information remained inaccessible to the hackers. Clients should be wary of spear phishing, business email compromise and identity theft using this information.

Customers Impacted: 4.9 million
How it Could Affect Your Customers’ Business: Data like this is sought-after by cybercriminals to power phishing operations. Unfortunately for these folks, it often hangs around for years on the Dark Web, acting as fuel for future cybercrime.

Risk Levels:
1 - 1.5 = Extreme Risk
1.51 - 2.49 = Severe Risk
2.5 - 3 = Moderate Risk

*The risk score is calculated using a formula that considers a wide range of factors related to the assessed breach.


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