T-Mobile customers' phone numbers, call records exposed after data breach
US telecommunications giant T-Mobile has suffered a security
breach that may have exposed call records and phone numbers for some of its
customers.
According to T-Mobile, the data breach did not
expose account holders' names, physical addresses, email addresses, financial
data, credit card information, social security numbers, tax IDs, passwords or
PINs.
First reported by Bleeping Computer, T-Mobile said the breach
exposed customers' proprietary network information (CPNI), including phone
numbers and call records.
"Customer proprietary network information (CPNI) as defined
by the Federal Communications Commission (FCC) rules was accessed," the
company said in a security update.
"The CPNI accessed may have included phone number, number of
lines subscribed to on your account and, in some cases, call-related
information collected as part of the normal operation of your wireless
service", it added.
Earlier breaches at T-Mobile exposed customers' information in
2018, prepaid customers' information in 2019 and exposed customer and financial
data in March last year, the report mentioned.
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